10.1 Introduction
On 4 May 1970, a notice titled ‘Closure of banks’ appeared in the Irish Independent newspaper in the Republic of Ireland. It read: Show
Banks in Ireland did not open again until 18 November, six-and-a-half months later. Did Ireland fall off a financial cliff? To everyone’s surprise, instead of collapsing, the Irish economy continued to grow much as before. A two-word answer has been given to explain how this was possible—Irish pubs. Andrew Graham, an economist, visited Ireland during the bank strike and was fascinated by what he saw:
The closure of the Irish banks is a vivid illustration of the definition of money—it is anything accepted in payment. At that time, notes and coins made up about one-third of the money in the Irish economy, with the remaining two-thirds in bank deposits. The majority of transactions used cheques, but paying by cheque requires banks to ensure that people have the funds to back up their paper payments. In a functioning banking system, the cheque is cashed at the end of the day, and the bank credits the current account of the shop. If the writer of the cheque does not have enough money to cover the amount, the bank bounces the cheque, and the shop owner knows immediately that he must collect in some other way. People generally avoid writing bad cheques as a result. Credit or debit cards were not yet widely used. Today, a debit card works by instantly verifying the balance of your bank account and debiting from it. If you get a loan to buy a car, the bank credits your current account and you then write a cheque, use a debit card, or initiate a bank transfer to the car dealer to buy the car. This is money in a modern economy. So what happens when the banks close their doors and everyone knows that cheques will not bounce, even if the cheque writer has no money? Will anyone accept your cheques? Why not just write a cheque to buy the car when there is not enough money in your current account or in your approved overdraft? If you start thinking like this, you would not trust someone offering you a cheque in exchange for goods or services. You would insist on being paid in cash. But there is not enough cash in circulation to finance all of the transactions that people need to make. Everyone would have to cut back, and the economy would suffer. How did Ireland avoid this fate? As we have seen, it happened at the pub. Cheques were accepted in payment as money, because of the trust generated by the pub owners. Publicans (owners of the pubs) spend hours talking and listening to their patrons. They were prepared to accept cheques, which could not be cleared in the banking system, as payment from those judged to be trustworthy. During the six-month period that the banks were closed, individuals and businesses wrote cheques to the value of about £5 billion, which were not processed by banks. It helped that Ireland had one pub for every 190 adults at the time. With the assistance of pub and shop owners who knew their customers, cheques could circulate as money. With money in bank accounts inaccessible, the citizens of Ireland created the amount of new money needed to keep the economy growing during the bank closure.23 Neither Irish publicans, nor the moneylenders in the market town of Chambar that we introduced in Unit 9, would recognize that, by lending in this way, they were creating money. They would also not know that, in doing so, they were providing a service essential for the functioning of their respective economies. trademarkA logo, a name, or a registered design typically associated with the right to exclude others from using it to identify their products.patentA right of exclusive ownership of an idea or invention, which lasts for a specified length of time. During this time it effectively allows the owner to be a monopolist or exclusive user.bankA firm that creates money in the form of bank deposits in the process of supplying credit.bank moneyMoney in the form of bank deposits created by commercial banks when they extend credit to firms and households.nominal interest rateThe price of bringing some spending power (in dollars or other nominal terms) forward in time. The policy rate and the lending rate quoted by commercial banks are examples of nominal interest rates. See also: real interest rate, interest rate, Fisher equation.10.2 Assets, money, banks, and the financial systemIn the bathtub model of Unit 9, the amount of water in the tub represents a household’s wealth. But wealth is not a homogeneous substance like water. Wealth is held in many forms, as both financial and non-financial assets. Money, shares, and bonds are financial assets. Non-financial assets include housing, cars, intellectual property (such as a trademark or a patent), and works of art. In the sections that follow, we introduce the main actors and markets in which assets are traded, which are part of a model of the financial system. ActorsThe main actors in the financial system are commercial banks (called banks from here on), the central bank, pension funds, and other financial institutions. Households and non-bank firms are also part of the financial system when they buy, sell, borrow, lend, save, invest, and interact in other ways with banks and the central bank. Like other firms, banks are predominantly privately owned and seek to make profits. Unlike other firms, they make profits by supplying loans; through this process, they create money, known as bank money. Banks set the lending rate. This is the interest rate—the nominal interest rate—that borrowers must pay on a loan. The way banks operate in a modern economy is explained in the next three sections. base moneyCash held by households, firms, and banks, and the balances held by commercial banks in their accounts at the central bank, known as reserves. Also known as: high-powered money.policy (interest) rateThe interest rate set by the central bank, which applies to banks that borrow base money from each other, and from the central bank. Also known as: base rate, official rate. See also: real interest rate, nominal interest rate.As we shall see, banks need a different kind of money, called base money, in order to carry out transactions with other banks. The only supplier of base money is the central bank. This allows the central bank to set the ‘price’ for borrowing base money, which is the policy interest rate, and like the lending rate, this is a nominal interest rate. Pension funds manage the contributions of employees and employers, purchase financial assets using those contributions, and pay out pension benefits at retirement. Other financial institutions include insurance companies, investment banks, payday lenders, and specialist lenders, such as mortgage providers in the housing market. MarketsAsset markets are the money market, the stock market, the housing market, and other financial markets. The central bank and commercial banks lend to each other and other financial institutions in the money markets. To see how secondary trading on the stock market works and how prices of shares are set through a continuous double auction, see Section 11.6 in The Economy. Companies make what are called initial public offerings (IPOs), using the stock market. In an IPO, shares in a company are sold to the general public for the first time. After that, the shares are traded on the stock exchange. This is called secondary trading. The housing market plays an important role in the economy. Houses are the main form of wealth of households (except for the very rich). Households borrow long term from banks or specialist mortgage lenders to buy houses. There are many other financial markets: for government and corporate bonds, derivatives, and other financial assets. Financial assetsMoney is a financial asset and is the subject of the next section. By selling bonds, a government or a firm can borrow money. The bond issuer promises to pay a given amount to the bondholder on a fixed schedule. Selling a bond is equivalent to borrowing, because the bond issuer receives cash today and promises to repay in the future. Conversely, a bond buyer is a lender or saver, because the buyer gives up cash today, expecting to be repaid in the future. Both governments and firms borrow by issuing bonds. Households buy bonds as a form of saving, both directly, and indirectly through pension funds. Although a bond is a way a firm can borrow, it is different from a bank loan because it can be bought and sold in secondary trading in the bond market. To learn more about bonds and how assets are priced, read the two ‘Find out more’ boxes at the end of this section. Shares (stocks) are a part of the assets of a firm that may be traded on the stock market. The owner of a share has a right to receive a proportion of a firm’s profit (when dividends are paid out) and to benefit when and if the firm’s assets become more valuable. As we saw in Unit 9, people whose incomes fluctuate want to smooth their consumption and they do so, in part, by saving. One factor that affects whether a household saves by holding money in a savings account, or by buying bonds or shares, is its attitude to risk. Holding shares, as we shall see, offers the potential for a higher return on savings, but because the price of shares goes up and down, there is a risk that the value of the asset itself will fall. We explain the trade-offs facing households choosing which assets to hold in Section 10.8; in Sections 10.9 and 10.11, we show why holding shares and other financial assets other than bonds may be risky.
10.3 Money and banksFor money to do its work, almost everyone must believe that, if they accept money from you in return for handing over goods or services, then they will be able to use the money to buy something else in turn. In other words, they must trust that others will accept your money as payment. Governments and banks usually provide this trust. As an indication of the centrality of trust to banking, the origin of the word ‘credit’ is the Latin credere—to believe, to trust. moneyMoney is something that facilitates exchange (called a medium of exchange) consisting of bank notes and bank deposits, or anything else that can be used to purchase goods and services, and is generally accepted by others as payment because others can use it for the same purpose. The ‘because’ is important and it distinguishes exchange facilitated by money from barter exchange, in which goods are directly exchanged without money changing hands.The Irish bank closure shows that, when there is sufficient trust between households and businesses, money can function in the absence of banks. The publicans and shops accepted a cheque as payment, even though they knew it could not be cleared by a bank in the foreseeable future. As the bank dispute went on, the cheque presented to the pub or shop relied on a lengthening chain of uncleared cheques received by the person or business presenting the cheque. Some cheques circulated many times, endorsed on the back by the pub or shop owner, just like a bank note. MoneyMoney is used for transactions—buying and selling—in the economy. When you pay for a train ticket on your smartphone linked to your bank account, by a cardless transfer, or by your debit card, the payment is made to the train company from deposits in your bank. There are many ways to activate the transfer between you and the vendor, but the money itself is the bank deposit. You can also pay by cash. Cash and bank deposits are the main forms of money in contemporary economies. In a barter economy, I might exchange my apples for your oranges because I want some oranges, not because I intend to use the oranges to pay my rent. Money makes more exchanges possible because it’s not hard to find someone who is happy to have your money (in exchange for something), whereas unloading a large quantity of apples could be a problem. This is why barter plays a limited role in virtually all modern economies.4 Money allows purchasing power to be transferred among people so that they can exchange goods and services, even when payment takes place at a later date (for example, through the clearing of a cheque or settlement of credit card or trade credit balances). Therefore, money requires trust to function. What does money do?Some of the functions that money fulfils are also fulfilled by other things. But only money clearly fulfils all these functions (although even money may not fulfil them equally well in all times and places). These functions are:
One reason for confusion around the use of the term ‘money’ is that what people have used to fulfil these functions has changed over the course of time. If we look back far enough, to an era well before the Industrial Revolution, most people in most countries would have recognized only one form, namely commodity money. The commodity chosen was often (but by no means always) a precious metal—most commonly gold or silver—which had some kind of intrinsic value (because it could in principle be used for other purposes, like jewelry or gold teeth). But commodity money did not fulfil the three functions very well and understanding its limitations helps explain the emergence of banks. Someone attempting to pay for a loaf of bread with a gold coin would have severe problems getting change, thus failing the test of divisibility. The risk of theft detracted from commodity money as a store of value (gold was much easier to steal than houses or cattle, for example). And there have always been significant fluctuations in the value of gold and silver in terms of what people really cared about—consumption of goods and services—thus detracting from its usefulness both as a store of value and as a unit of account. As a result, even in periods when commodity money was widely used, alternatives that could fulfil at least some of the functions of money were available. In due course, these alternatives evolved into forms that eventually supplanted commodity money (almost) entirely. Money in the modern economy is an IOUThese new forms of money share with commodity money the defining characteristic that they are accepted by other people as a means of payment. They differ from commodity money and share the feature, whether bank deposits or currency, that they are created when a bank or the central bank as part of the government creates a liability. A liability is just an IOU (‘I owe you’). To understand how money works based on IOUs rather than on a commodity like gold, recall the Irish bank strike. The cheques that circulated as money and were used for payments—endorsed on the back by the publicans—were the way in which IOUs were passed around in exchange for goods and services.
What we call money today is IOU or liability-based money. To be more precise, if I own some form of liability money, it is because either a commercial bank or the central bank owes me that amount, and someone else will accept a transfer of all or part of that debt via electronic transfer or currency as a means of payment. Even in the era of commodity money, the fear of theft often led wealthy individuals to deposit their gold coins with goldsmiths. The goldsmiths in turn would issue ‘promissory notes’, which were open commitments to return the gold whenever required. These IOUs in due course evolved into the first prototype banknotes, which were the liabilities of the goldsmith. If the depositor wanted to make a purchase, they did not need to retrieve the gold, but could make payments directly using the promissory notes, that is, the goldsmith’s liabilities. In due course, these forms of arrangements evolved into the modern banking system. Money in bank accounts: IOUs of commercial banksbalance sheetA record of the assets, liabilities, and net worth of an economic actor such as a household, bank, firm, or government.Today, in most countries, virtually all forms of money are liability-based money. But whose liabilities are they? Mostly, they are the liabilities of banks. If you have $1,000 in your current account, this means that the bank owes you $1,000. In your balance sheet as we saw in Section 9.9, your bank deposit would appear as an asset; in the bank’s balance sheet, it appears as a liability. Money as coins and notes: IOUs of central banksThe other institution that issues liabilities that we call money is the government. While banknotes and coins are officially the liability of the central bank, in almost all countries the central bank is owned by the government, so the central bank is issuing liabilities on the government’s behalf. Paul Krugman compares cryptocurrencies like Bitcoin to commodity money and fiat money, and asks what problems cryptocurrencies solve. In earlier times, banknotes and coins issued by the central bank were exchangeable for gold, just like the promissory notes of the goldsmiths. In modern monetary systems, there is no gold-backing for currency and it is called ‘fiat currency’. The central bank promises to honour the debt printed on the bank note with the words: ‘I promise to pay the bearer on demand the sum of twenty pounds’ (signed by the Chief Cashier on behalf of the Governor of the Bank of England). On US dollar bills, it says the equivalent: ‘This note is legal tender for all debts, public and private’ and is signed by the Treasurer of the United States. Euro notes are signed by the President of the European Central Bank. If the design changes, for example, the central bank will swap the old note for a new one. Trust in fiat currency originates partly from the government’s commitment to accept it in payment of taxes.
Question 10.3 Choose the correct answer(s)Which of the following statements about money are correct?
10.4 Banks, profits, and the creation of moneyAmong the moneylenders in Chambar, Pakistan and payday lenders in New York (in Unit 9), the profitability of their lending businesses depend on:
This provides the starting point for analysing banks as businesses. Banks create money when providing payment services and making loansA bank is a firm that makes profits through its lending and borrowing activities. The terms on which banks lend to households and firms differ from their borrowing terms. The interest they pay on deposits is lower than the interest they charge when they make loans, and this spread or margin allows banks to make profits. To explain this process, we must first explore the concept of money in more detail. central bankThe only bank that can create base money. Usually part of the government. Commercial banks have accounts at this bank, holding base money. See also: base money. We saw that anything that is accepted as payment can be counted as money. Unlike bank deposits or cheques, base money or high-powered money is cash plus the balances held by commercial banks at the central bank, called commercial bank reserves. Reserves are equivalent to cash because a commercial bank can always take out reserves as cash from the central bank, and the central bank can always print any cash it needs to provide. As we will see, this is not the case with accounts held by households or businesses at commercial banks; commercial banks do not necessarily have the cash available to satisfy all their customers’ needs. Most of what we count as money is not base money issued by the central bank, but instead is created by commercial banks when they make loans. In the UK, 97% of money is bank money; 3% is base money. We explain how money is created using bank balance sheets. Payment services
Unlike our balance sheet example in Unit 9 in which a bank deposit arises from a loan to Julia, let us suppose that Marco has $100 in cash that he puts in a bank account with Abacus Bank. Abacus Bank puts the cash in a vault or deposits the cash in its account at the central bank. Abacus Bank’s balance sheet gains $100 of base money as an asset, and a liability of $100 that is payable on demand to Marco, as shown in Figure 10.1a.
Figure 10.1a Marco deposits $100 in Abacus Bank. Marco wants to pay $20 to his local grocer, Gino, in return for groceries, so he instructs Abacus Bank to transfer the money to Gino’s account in Bonus Bank (he could do this by using a debit card to pay Gino). What happens immediately is that Abacus Bank transfers a liability to Bonus Bank, saying it owes Bonus Bank $20. However, it must only transfer what it owes at the close of business that day—so in the short term, no base money needs to be transferred. This is shown on the balance sheets of the two banks in Figure 10.1b. Abacus Bank now owes $80 to Marco and $20 to Bonus Bank. Bonus Bank’s assets are increased by this promise of $20 owed by Abacus Bank, and its liabilities increase by $20 payable on demand to Gino. For both banks, net worth (assets minus liabilities) stays the same, although the net worth of their customers, Marco and Gino, changes.
Figure 10.1b Marco pays $20 to Gino. To complete the story, at the close of business that day, Abacus Bank must transfer the base money it owes Bonus Bank. The balance sheets are shown in Figure 10.1c.
Figure 10.1c Marco pays $20 to Gino (end of transaction). Note that both banks may make many other transactions in the same day, and the base money that must be transferred at close of business is the net value of those transactions. So suppose Marco pays $20 to Gino, but then another Bonus Bank customer transfers $5 to another Abacus Bank customer. Then at the end of the day Abacus Bank need only transfer $20 – $5 = $15 to Bonus Bank. payment serviceAny service provided by a financial institution to allow one person or organization to pay another for a product or service.This illustrates the payment services provided by banks. You may have noticed in Figure 10.1b that the total amount of assets and liabilities of the two banks increased from $100 to $120; however, at close of business it was back down to $100 again (Figure 10.1c). The increase occurred because Abacus Bank created a new liability by effectively borrowing from Bonus Bank for the duration of the day. As long as it owed $20, that $20 was a new liability in the banking system and represented new bank money. When Abacus redeemed the loan at the end of the day by transferring base money, the loan disappeared. But this mechanism also applies for longer-term term loans; when a bank lends money to a firm or a household, it increases the money supply. In this way, banks create money in the process of making loans, as we now show. Making a loanbank moneyMoney in the form of bank deposits created by commercial banks when they extend credit to firms and households.Suppose that Gino borrows $100 from Bonus Bank. Bonus Bank lends him the money by crediting his bank account with $100, so he is now owed $120 (taking into account the $20 Gino paid him earlier). But he owes a debt of $100 to the bank. So Bonus Bank’s balance sheet has expanded. Its assets have grown by the $100 owed by Gino, and its liabilities have grown by the $100 it has credited to his bank account, shown in Figure 10.1d.
Figure 10.1d Bonus Bank gives Gino a loan of $100. Bonus Bank has now expanded the money supply. Gino can make payments up to $120, so in this sense the money supply has grown by $100—even though base money has not grown. The money created by his bank is called bank money. Because of the loan, the total ‘money’ in the banking system has grown, as Figure 10.1e shows.
Figure 10.1e The total money in the banking system has grown. While banks are free to create bank money when they make loans, they need base money to settle transactions at the end of each business day, as we saw above. In practice, banks perform many transactions among each other on any given day, most cancelling each other out. This means that the net that must be transferred at the end of each day is small compared with the amount of money flowing around in transactions. This means banks do not need to have sufficient base money available to cover all transactions. The ratio of base money to broad money varies across countries and over time. For example, before the financial crisis, base money comprised about 3–4% of broad money in the UK, 6–8% in South Africa, and 8–10% in China. Banks provide maturity transformation services, borrowing short term and lending long termCreating money may sound like an easy way to make profits, but as we have seen, the money banks create is a liability, not an asset, because it must be paid on demand to the borrower. It is the corresponding loan that is an asset for the bank. Banks make profits out of the process that allows people to shift consumption from the future to the present by charging interest on the loans. So if Bonus Bank lends Gino $100 at an interest rate of 10%, then next year the bank’s liabilities have fallen by $10 (the interest paid on the loan, which is a fall in Gino’s deposits). This income for the bank increases its accumulated profits and therefore its net worth by $10. Since net worth is equal to the value of assets minus the value of liabilities, this allows banks to create positive net worth. maturity transformationThe practice of borrowing money short term and lending it long term. For example, a bank accepts deposits, which it promises to repay at short notice or no notice, and makes long-term loans (which can be repaid over many years). Also known as: liquidity transformation.mortgage (or mortgage loan)A loan contracted by households and businesses to purchase a property without paying the total value at one time. Over a period of many years, the borrower repays the loan, plus interest. The debt is secured by the property itself, referred to as collateral. See also: collateral.liquidity riskThe risk that an asset cannot be exchanged for cash rapidly enough to prevent a financial loss.default riskThe risk that credit given as loans will not be repaid.By taking deposits and making loans, banks provide the economy with the service called maturity transformation. Bank depositors (individuals or firms) can withdraw their money from the bank without notice. But when banks lend, they give a fixed date on which the loan will be repaid, which in the case of a mortgage loan for a house purchase, may be 30 years in the future. They cannot require the borrower to repay sooner, which allows those receiving bank loans to engage in long-term planning. This is called maturity transformation because the length of a loan is termed its maturity, so the bank is engaging in short-term borrowing and long-term lending. It is also called liquidity transformation—the lenders’ deposits are liquid (free to flow out of the bank on demand), whereas bank loans to borrowers are illiquid. Maturity transformation, liquidity risk, and bank runsWhile maturity transformation is an essential service in any economy, it also exposes the bank to a new form of risk (called liquidity risk), aside from the possibility that its loans will not be repaid (called default risk). bank runA situation in which depositors withdraw funds from a bank because they fear that it may go bankrupt and not honour its liabilities (that is, not repay the funds owed to depositors).Banks make money by lending much more than they hold in base money, because they count on depositors not to need their funds all at the same time. The risk they face—liquidity risk—is that depositors can all decide they want to withdraw money instantaneously, but the money won’t be there. In Figure 10.1e, the banking system owed $200 but only held $100 of base money. If all customers demanded their money at once, the banks would not be able to repay. This is called a bank run. If there’s a run, the bank is in trouble. Liquidity risk is a cause of bank failures and explains why many governments provide automatic insurance for depositors against the risk that their banks will fail to meet payments. Protection limits and the extent to which banks contribute to the insurance fund vary across countries. If people become frightened that a bank is experiencing a shortage of liquidity, there will be a rush to be the first to withdraw deposits. If everyone tries to withdraw their deposits at once, the bank will be unable to meet their demands because it has made long-term loans that cannot be called in at short notice. Question 10.4 Choose the correct answer(s)Which of the following statements are correct?
Question 10.5 Choose the correct answer(s)Figure 10.2 shows a balance sheet of a bank.
Figure 10.2 A bank’s balance sheet. The interest rate charged on loans is 10%. Based on this information, which of the following statements are correct?
10.5 The central bank, banks, and interest ratesinterest rate (short-term)The price of borrowing base money. This is a nominal interest rate.Commercial banks make profits from providing banking services and loans. To run the business, they need to be able to make transactions, for which they need base money. There is no automatic relationship between the amount of base money they require and the amount of lending they do. Rather, they need whatever amount of base money that covers the net transactions they make on a daily basis. The price of borrowing base money is the short-term interest rate. Suppose, in the example of Gino and Marco, that Gino wants to pay $50 to Marco after borrowing $100. Also assume there are no other transactions that day. At close of business that day, Gino’s bank, Bonus Bank, doesn’t have enough base money to make the transfer to Abacus Bank, as we can see from its balance sheet in Figure 10.1f.
Figure 10.1f Bonus Bank does not have enough base money to pay $50 to Abacus Bank. So Bonus Bank must borrow $30 of base money to make the payment. Banks borrow from each other in the money markets since, at any moment, some banks will have excess money in their bank accounts, and others not enough. They could try to induce a household or firm to deposit additional money, but deposits also have costs, due to interest payments, marketing, and maintaining bank branches. Thus, cash deposits are only one part of bank financing. But what determines the price of borrowing in the money market (the interest rate)? We can think in terms of supply and demand:
Since the central bank controls the supply of base money, it can decide the interest rate. The central bank intervenes in the money market by saying it will lend (i.e. supply) whatever quantity of base money is demanded at the interest rate (i) that it chooses. policy (interest) rateThe interest rate set by the central bank, which applies to banks that borrow base money from each other, and from the central bank. Also known as: base rate, official rate. See also: real interest rate, nominal interest rate.The technicalities of how the central bank implements its chosen policy interest rate vary among central banks around the world. The details can be found on each central bank’s website. Banks in the money market respect that price; no bank borrows at a higher rate or lends at a lower rate, since they can borrow at rate i from the central bank. This i is also called the base rate, official rate or policy (interest) rate (often shortened to ‘policy rate’). lending rate (bank)The average interest rate charged by commercial banks to firms and households. This rate will typically be above the policy interest rate: the difference is known as the markup or spread on commercial lending. This is a nominal interest rate. Also known as: market interest rate. See also: interest rate, policy (interest) rate.The base rate applies to banks that borrow base money from each other and from the central bank. The base rate matters in the rest of the economy because of its knock-on effect on other interest rates. The average interest rate charged by commercial banks to firms and households is called the bank lending rate. This rate is typically above the policy interest rate, ensuring that banks make profits (it is also higher for borrowers perceived as risky by the bank, as we saw earlier). The difference between the bank lending rate and the base rate at which they can borrow is the markup, or spread on commercial lending. In the UK, for example, the policy interest rate set by the Bank of England was 0.75% in 2019, but few banks would lend at less than 3%. In emerging economies, this gap can be quite large, owing to the uncertain economic environment. In Brazil, for instance, the central bank policy rate in 2018 was 6.5% but the average bank lending rate was 53%. The central bank does not control this markup, but generally the bank lending rate goes up and down with the base rate, in the same way that other firms adjust their prices as their costs rise and fall. government bondA financial instrument issued by governments that promises to pay flows of money at specific intervals.yieldThe implied rate of return that the buyer gets on their money when they buy a bond at its market price.present valueThe value today of a stream of future income or other benefits, when these are discounted using an interest rate or the person’s own discount rate. See also: net present value.Figure 10.3 greatly simplifies the financial system. It does not include all the actors, financial assets, or markets introduced in Section 10.2. In this simplified model, we show household savers facing just two choices: to deposit money in a bank current account, which (for simplicity) we assume pays no interest, or buy government bonds in the money market. The interest rate on government bonds is called the yield. Go back to the ‘Find out more’ box at the end of Section 10.2 for an explanation of these bonds, and why the yield on government bonds is close to the policy interest rate. We also give an explanation of what are called present value calculations, which are essential for you to understand how assets like bonds are priced. Fullscreen Figure 10.3 Banks, the central bank, borrowers, and savers. Adapted from Figure 5.12 in Chapter 5 of Wendy Carlin and David Soskice. 2015. Macroeconomics: Institutions, Instability, and the Financial System. Oxford: Oxford University Press.
Question 10.6 Choose the correct answer(s)Which of the following statements are correct?
10.6 The business of banking and bank balance sheetsHaving introduced the banks and the central bank as actors in the economy, we can understand the business of banking better if we can look at a commercial bank’s costs and revenues:
As was the case for moneylenders, if the risk of making loans (the default rate) is higher, then there will be a larger gap (or spread or markup) between the interest rate banks charge on the loans they make and the cost of their borrowing. The profitability of the business depends on the difference between the cost of borrowing and the return to lending, taking account of the default rate and the operational costs of screening the loans and running the bank. A good way to understand a bank is to look at its entire balance sheet (Figure 10.4), which summarizes its core business of lending and borrowing. collateralAn asset that a borrower pledges to a lender as a security for a loan. If the borrower is not able to make the loan payments as promised, the lender becomes the owner of the asset.
Figure 10.4 A simplified bank balance sheet. Adapted from Figure 5.9 in Chapter 5 of Wendy Carlin and David Soskice. 2015. Macroeconomics: Institutions, Instability, and the Financial System. Oxford: Oxford University Press. As we saw in the example of Abacus and Bonus Bank in Section 10.4: insolventAn entity is this if the value of its assets is less than the value of its liabilities. See also: solvent.Another way of saying this is that the net worth of a firm, like a bank, is equal to what is owed to the shareholders or owners. This explains why net worth is on the liabilities side of the balance sheet. If the value of the bank’s assets is less than the value of what the bank owes others, then its net worth is negative, and the bank is insolvent. Like any other firm in a capitalist economy, banks can fail by making bad investments, such as by giving loans that do not get paid back. But in some cases, banks are so large or so deeply involved throughout the financial system that governments decide to rescue them if they are at risk of going bankrupt. This is because, unlike the failure of a firm, a banking crisis can bring down the financial system as a whole and threaten the livelihoods of people throughout the economy. Bank failures and the threat of bank failures played a major role in the global financial crisis of 2008. Let’s examine the asset side of the bank balance sheet: liquidityEase of buying or selling a financial asset at a predictable price.
On the liability side of the bank balance sheet, there are three forms of bank borrowing, shown in Figure 10.4:
Equity is the difference between the value of an asset owned and the value of liabilities associated with that asset. (The term ‘equity’ is also used in an entirely different sense to mean the quality of being fair or impartial.) We can see this from real-world examples illustrated in Figures 10.5 and 10.6. Figure 10.5 shows the simplified balance sheet of Barclays Bank (just before the financial crisis) and Figure 10.6 shows the simplified balance sheet of a company from the non-financial sector, Honda.
Figure 10.5 Barclays Bank’s balance sheet in 2006 (£m). Barclays Bank. 2006. Barclays Bank PLC Annual Report. Also presented as Figure 5.10 in Chapter 5 of Wendy Carlin and David Soskice. 2015. Macroeconomics: Institutions, Instability, and the Financial System. Oxford: Oxford University Press.
Figure 10.6 Honda Motor Company’s balance sheet in 2013 (¥m). Current assets refer to cash, inventories, and other short-term assets. Current liabilities refer to short-term debts and other pending payments. A way of describing the reliance of a company on debt is to refer to its leverage ratio, also known as gearing.
Unfortunately the term leverage ratio is defined differently for financial and non-financial companies (both definitions are shown in Figures 10.5 and 10.6). Here, we calculate the leverage for Barclays and Honda, using the definition used for banks (total assets divided by net worth). Barclays’ total assets are 36 times their net worth. This means that, given the size of its liabilities (its debt), a very small change in the value of its assets (1/36 ≈ 3%) would be enough to wipe out its net worth and make the bank insolvent. By contrast, using the same definition we see that Honda’s leverage is less than three. Compared to Barclays, Honda’s equity is far higher in relation to its assets. Another way to say this is that Honda finances its assets by a mixture of debt (62%) and equity (38%), whereas Barclays finances its assets with 97% debt and 3% equity. Question 10.7 Choose the correct answer(s)The following example is a simplified balance sheet of a commercial bank. Based on this information, which of the following statements are correct?
Figure 10.7 A commercial bank’s balance sheet.
Question 10.8 Choose the correct answer(s)Which of the following statements are correct?
10.7 How key economic actors use and create money: A summary so farHere is a summary of how key economic actors use and create money in a modern economy. Households
Their income is wages, salaries, interest, rent, profits, government transfers, and gifts. From this, they:
Firms (other than banks)
Their revenue is the money taken in through sales of goods and services. From this, they:
They make profits. After paying tax, interest and depreciation, they:
Banks
They have reserves accounts at the central bank. They use these to:
Central bank
Government
It also has revenues, primarily from taxes. From these, a government:
Having explained the major actors in financial markets, we turn now to how individuals value financial assets. 10.8 The value of an asset: Expected return and riskPeople buy fresh fish or clothes for their consumption value—to eat or to wear. But when people buy an asset—a house, a car, a work of art, a bond, or a share (a piece of ownership in a company)—they often have a second motive. Their objective is not only to benefit in some way while owning the asset (for example, living in the house), but also to be able to sell it later for more than they paid for it. Assets are distinguished from other goods because they are long-lasting in a particular sense; unlike fish or used clothes, asset owners care about the resale value of their assets in the future. In Unit 7, we studied the factors that determine the price of ordinary goods and services. As in those cases, the interaction of supply and demand determines the price for assets, but the demand for an asset is not based only on how much the buyer wishes to have it, but also on the buyer’s estimation of how valuable it will be to other potential buyers in future years. The fact that the value of an asset today depends on how much it will be worth to others in the future introduces an important new consideration: the uncertainty caused by the fact that an asset’s value may increase or decrease. As a result, unlike the clothes or the fish—where what you buy is what you get—buying an asset in most cases means taking a risk about its future value. This assumption was brought into question in the Eurozone crisis that followed the global financial crisis. To find out about the Eurozone crisis, read this article. To study how risk affects the price of an asset, we will contrast how a person might value a government bond, which is as close to a riskless asset as you can get, and shares in a company. A government bond is considered to be a riskless asset because it is a promise from the government to pay some fixed amount to the holder of the bond on a given schedule over a fixed period of time and because it is assumed that the government will not default on the payments. Shares are literally a share in the ownership of a company. The holder owns some fraction of the company’s buildings, equipment, intellectual property, and other assets. As a part owner of the firm, the shareholder also owns a share of the profits of the firm. The value of a share depends on how profitable the firm is and is expected to be in the future. Shares thus differ from bonds in two important respects: there is no promised payment to the holder (it depends on how profitable the firm is), and there is no fixed maturity period for the ownership of a share (it may be held for a lifetime). Safe bonds and risky sharesNow think about Ayesha, who is deciding whether to buy a government bond or a share in one of a large number of companies with publicly listed shares. What does she care about? Two things. The first is her best guess about what her wealth will be at some future date depending on what she buys, called the expected value of her wealth. The second thing she cares about is how much risk she is taking when she buys a particular bond or share. The expected value is her best guess but what actually happens could be very different, either much better or much worse. In the case of the bond, there is no risk attached to holding the bond—the promise to pay a certain amount over a certain period can be counted on. But the value of the share that she purchases may go up or down. We will use a model to explain how Ayesha could decide what kind of asset to purchase, taking account of both expected value and risk. To simplify things, suppose that in the future there are just two possible states of the world affecting the value of the share she has purchased. There is a ‘good’ state in which the price is higher than her expected value, and a ‘bad’ state in which the price is lower than her expected value. Ayesha does not know which will occur, and that is why purchasing shares is risky. Some shares are much riskier than others. For some shares the difference in the good and the bad state is very small. Something close to the expected value (a bit higher or a bit lower) will definitely occur. But for other shares, the difference is substantial: the share may double in value or be reduced to a worthless piece of paper. The difference in the share’s value between the good and the bad state is the degree of risk that Ayesha will face, depending on which share she purchases, or if she purchases the bond. To summarize so far: Ayesha prefers shares with a greater expected value and a lower degree of risk. The trade-off between a higher expected return and higher riskAyesha would like, of course, to buy an asset that has a high expected value and a low degree of risk. But there is a hitch—low-risk assets typically have low expected values, and assets with high expected value are often associated with high levels of risk. In other words, Ayesha faces a trade-off, similar to the trade-offs faced by the student and the farmer in Unit 4, who wanted both more free time and also more of the other thing they valued—success in the exam and grain produced on the farm. Facing this trade-off between expected value and risk, what will she buy? We have the two pieces of information necessary to describe the choice that will make her the best off—give her the maximum utility—of all the choices open to her, that is, we know her: feasible frontierThe curve made of points that defines the maximum feasible quantity of one good for a given quantity of the other. See also: feasible set.indifference curveA curve of the points which indicate the combinations of goods that provide a given level of utility to the individual.
Figure 10.8a explains how the combinations of risk and return associated with different assets are represented by a feasible set and feasible frontier.
Fullscreen Figure 10.8a The trade-off between risk and return: The feasible set. Fullscreen The feasible set Points A, B, C, and E represent combinations of risk and expected return associated with different assets that Ayesha can buy. The shaded area represents the feasible set of combinations of risk and expected return. Fullscreen The risk–return schedule The only points of interest to Ayesha are those on the feasible frontier, called the risk–return schedule. Asset A is the risk-free bond. An asset like E inside the feasible frontier, is not worth considering, because there will always be some other asset (like C) which has both a higher expected return and a lower risk. Fullscreen Upward-sloping risk–return schedule Ayesha can entirely opt out of risk-taking by purchasing the bond (point A). But she also has a large choice of shares with more or less risk. Notice that the risk–return schedule is upward sloping. Higher returns (greater expected values) are possible only by taking greater risk, for example, by purchasing the share indicated by point C, or—even more risky—point B. Fullscreen Marginal rate of transformation The slope of the risk–return schedule is called the marginal rate of transformation of risk into return. For low levels of risk (near the vertical axis), the slope of the feasible frontier is steep, meaning that taking a little more risk yields large gains in expected return. However, the curve gets flatter (and may even slope downwards) when the level of risk is greater. Each point in the figure represents some combination of these two aspects of an asset—risk and expected return. From Figure 10.8a, we can see that not all the conceivable combinations of risk and return are possible by buying an asset. If Ayesha has $1,000 to purchase an asset, the ones that are available to her—the feasible set of combinations of risk and expected return—make up the shaded area in Figure 10.8a. The red curve is the familiar feasible frontier, which in this case is called the risk–return schedule (a ‘schedule’ is just a curve or function, and return refers to the expected value). The risk-free bond is shown by point A where the feasible frontier intersects the vertical axis—the level of risk, Δ, is equal to zero. If Ayesha wishes to entirely avoid risk, she can purchase bonds. But the risk–return frontier shows that she can achieve a higher expected return (measured on the vertical axis, by w) if she purchases a risky asset such as the one shown by point C. As highlighted in the figure, the feasible frontier is very steep near the vertical axis when risk is very low. By moving to a riskier asset, Ayesha can achieve large gains in expected return. As the frontier gets flatter, the riskier the assets become. marginal rate of transformation (MRT)A measure of the trade-offs a person faces in what is feasible. Given the constraints (feasible frontier) a person faces, the MRT is the quantity of some good that must be sacrificed to acquire one additional unit of another good. At any point, it is the slope of the feasible frontier. See also: feasible frontier, marginal rate of substitution.The slope of the risk–return schedule is called the marginal rate of transformation of risk into return. Ayesha’s preferences about risk and returnTo determine what choice would give Ayesha the greatest utility, we need a second piece of information—how much she values each of the outcomes (combinations of w and Δ). To do this, we introduce Ayesha’s preferences, which we represent by her indifference curves. Figure 10.8b explains the shape of Ayesha’s indifference curves. Two of these are shown in Figure 10.8b as the blue curves. To see what these mean, notice that point A (no risk, low expected value) is on the same indifference curve as point B (high risk, high expected return), meaning that, as far as Ayesha is concerned, these two outcomes are equally valued by her. Fullscreen Figure 10.8b The trade-off between risk and return: Ayesha’s preferences. Fullscreen Ayesha’s preferences The blue curves show combinations of w and Δ) that give Ayesha the same level of utility. They are upward sloping, meaning that Ayesha needs to be compensated for risk-taking through a higher expected return. Fullscreen Marginal rate of substitution The slope of Ayesha’s indifference curves is called the marginal rate of substitution between risk and expected value. A steep indifference curve means that taking on a given increase in risk would have to be compensated by a large increase in return. When comparing Ayesha’s indifference curves, notice that at a given level of risk such as Δ*, she is less risk averse when her expected wealth is higher: the slope is flatter at C than at F. Notice about these risk–return indifference curves:
The slope of Ayesha’s indifference curves is called the marginal rate of substitution between risk and expected value. The steepness of the indifference curve measures how much of a ‘bad’ risk is, compared to how much of a ‘good’ the expected value is. This is termed risk aversion, meaning how much the individual is averse to (does not like) risk. Now notice a third thing about the indifference curves:
Wealthier people and those exposed to less risk are less risk averseThe three features of risk–return indifference curves discussed above mean that people tend to be more risk averse:
Ayesha’s choice: Trading off risk and returnIn Figure 10.8c, we combine the indifference curves with the risk–return schedule to see how Ayesha makes her asset choice. Fullscreen Figure 10.8c Ayesha’s choice: MRS = MRT. Fullscreen MRS = MRT We see that the best Ayesha can do is to select point C, that is, a share with an expected value of w* and a risk level of Δ*. Fullscreen Ayesha does better by buying a share Point D is called the ‘certainty equivalent’ of point C, meaning it is the outcome with zero risk that would be just as good as the risky asset she chooses. But D is not feasible. This explains Ayesha’s choice of a risky share at C rather than the safe bond at A. Putting together the indifference curves and the risk–return schedule, we see that the best Ayesha can do is to select point C, that is, a share with an expected value of w* and a risk level of Δ*. We can compare Ayesha’s choice of this share with what she would have gained had she purchased the bond. Point D and point C (the point she chose) are on the same indifference curve, so they are equally good from Ayesha’s standpoint. Point D indicates the expected value with no risk that would have been just as good as point C (higher return, some risk). Point D is called the certainty equivalent of point C, meaning it is the outcome with no risk that would be just as good as the risky point she chose. We can compare point D with point A because both are outcomes with no risk. Notice that point D, and hence also point C (on the same indifference curve), are preferred to point A, the purchase of a bond. Hence, taking on some risk can give Ayesha higher utility than buying a bond.
Question 10.9 Choose the correct answer(s)Which of the following statements about assets and risk are true?
10.9 Changing supply and demand for a financial assetsecondary and primary marketsThe primary market is where goods or financial assets are sold for the first time. For example, the initial sale of shares by a company to an investor (known as an initial public offering or IPO) is on the primary market. The subsequent trading of those shares on the stock exchange is on the secondary market. The terms are also used to describe the initial sale of tickets (primary market) and the secondary market in which they are traded.stock exchangeA financial marketplace where shares (also known as stocks) and other financial assets are traded. It has a list of companies whose shares are traded there. See also: share.commoditiesPhysical goods traded in a manner similar to shares. They include metals such as gold and silver, and agricultural products such as coffee and sugar, oil and gas. Sometimes more generally used to mean anything produced for sale. See also: share.When a company sells new shares (or stocks) to the public for the first time, this is called an initial public offering (IPO). After that, the shares are traded on the stock exchange. This is called trading on the secondary market. Prices in trading in secondary markets are constantly changing. The graph in Figure 10.9 shows how News Corp’s (NWS) share price on the Nasdaq stock exchange fluctuated over one day in May 2014 and, in the lower panel, the number of shares traded at each point. Soon after the market opened at 9.30 a.m., the price was $16.66 per share. As investors bought and sold shares through the day, the price reached a low point of $16.45 at both 10 a.m. and 2 p.m. By the time the market closed, with the share price at $16.54, nearly 556,000 shares had been traded. Fullscreen Figure 10.9 News Corp’s share price and volume traded (7 May 2014). The flexibility demonstrated by News Corp share prices is common in markets for other financial assets, such as government bonds, currencies under floating exchange rates, commodities, such as gold, crude oil and corn, and tangible assets such as houses and works of art. But share prices are not only volatile hour-by-hour and day-by-day. Figure 10.10 shows the value of the Nasdaq Composite Index between 1995 and 1999. This index is an average of prices for a set of shares, with companies weighted in proportion to their market capitalization. The Nasdaq Composite Index at this time included many fast-growing and hard-to-value companies in technology sectors. The index began the period at less than 750, and rose to 2,300 over four years, reflecting strong demand for these shares, arising from the view that there were new profitable opportunities for firms in the technology sector. Fullscreen Figure 10.10 Information technology and rising prices for tech shares: Nasdaq Composite Index (1995–1999). 10.10 Asset market bubblesThe logic of market stability and bubblesasset price bubbleA sustained and significant rise in the price of an asset, fuelled by expectations of future price increases.fundamental value of a shareThe share price based on anticipated future earnings and the level of risk.As well as reflecting long-term technology trends, share prices can also display large swings, often referred to as bubbles. To see how this happens, we should distinguish between the so-called fundamental value of a share (based on the expectations of the firm’s profitability in the future), and the changes in value associated with beliefs about how much others would be willing to pay for the share in the future and therefore its future price trends. To model markets for assets like shares, paintings, or houses, we need to allow for the effects of beliefs about future prices. Figure 10.11 contrasts two alternative scenarios following an exogenous shock of good news about future profits of a fictitious firm, Flying Car Company (FCC), that raises the share price from $50 to $60. In the left-hand panel, beliefs dampen price rises; some market participants respond to the initial price rise with scepticism about whether the fundamental value of FCC is really $60, so they sell shares, taking a profit from the higher price. This behaviour reduces the price and it stabilizes—the news has been incorporated into a price between $50 and $60, reflecting the aggregate of beliefs in the market about the new fundamental value of FCC. Fullscreen Figure 10.11 Positive vs negative feedback. By contrast, in the right-hand panel beliefs amplify price rises. When demand rises, others believe that the initial rise in price signals a further rise in future. These beliefs produce an increase in the demand for FCC shares. Other traders see that those who bought more shares in FCC benefited as its price rose, so they follow suit. A self-reinforcing cycle of higher prices and rising demand takes hold. Question 10.10 Choose the correct answer(s)Which of the following statements about asset prices are correct?
Example: The tech bubbleFigure 10.12 extends the series in Figure 10.10 through to 2004. The rise in the index—from less than 750 to more than 5,000 in less than five years at its peak—implied a remarkable annualized rate of return of around 45%. It then lost two-thirds of its value in less than a year, and eventually bottomed out at around 1,100, almost 80% below its peak. The episode has come to be called the tech bubble. Fullscreen Figure 10.12 The tech bubble: Nasdaq Composite Index (1995–2004). Bubbles, information, and beliefsThe term ‘bubble’ refers to a sustained and significant departure of the price of any asset (financial or otherwise) from its fundamental value. Sometimes, new information about the fundamental value of an asset is quickly and reliably expressed in markets. Changes in beliefs about a firm’s future earnings growth result in virtually instantaneous adjustments in its share price. Both good and bad news, (such as information about patents or lawsuits, the illness or departure of important personnel, earnings surprises, or mergers and acquisitions) can all result in active trading—and swift price movements. Three distinctive and related features of markets may give rise to bubbles:
So there are two quite different interpretations of the ‘tech bubble’ episode in Figure 10.12:
Question 10.11 Choose the correct answer(s)Which of the following statements about bubbles are correct?
10.11 Housing as an asset, collateral, and house price bubblescollateralAn asset that a borrower pledges to a lender as a security for a loan. If the borrower is not able to make the loan payments as promised, the lender becomes the owner of the asset.When households borrow to buy a house, this is a secured or collateralized loan. As part of the mortgage agreement, the bank can take possession of the house if the borrower does not keep up repayments. Collateral plays an important role in sustaining a house price boom. When the house price goes up—driven, for example, by beliefs that a further price rise will occur—this increases the value of the household’s collateral (see the left-hand diagram in Figure 10.13). Using this higher collateral, households can increase their borrowing and move up the housing ladder to a better property. This, in turn, pushes up house prices further and sustains the bubble, because the banks extend more credit based on the higher collateral. Increased borrowing, made possible by the rise in the value of the collateral, is spent on goods and services as well as on housing. Fullscreen Figure 10.13 The housing market on the way up and on the way down. When house prices are expected to rise, it is attractive to households to increase their borrowing. Suppose a house costs $200,000 and the household makes a down payment of 10% ($20,000). This means it borrows $180,000. Its initial leverage ratio, in this case the value of its assets divided by its equity stake in the house, is 200/20 = 10. Suppose the house price rises by 10% to $220,000. The return to the equity the household has invested in the house is 100% (since the value of the equity stake has risen from $20,000 to $40,000, it has doubled). Households who are convinced that house prices will rise further will want to increase their leverage—that is how they get a high return. The increase in collateral, due to the rise in the price of their house, means they can satisfy their desire to borrow more. On the right-hand side, we see what happens when house prices decline. The value of collateral falls and the household’s spending declines, pushing house prices down. The assets and liabilities of a household can be represented in its balance sheet. The house is on the asset side of the household’s balance sheet. The mortgage owed to the bank is on the liabilities side. When the market value of the house falls below what is owed on the mortgage, the household has negative net worth. This condition is sometimes referred to as the household being ‘underwater’. Using the example above, if the leverage ratio is 10, a fall in the house price by 10% wipes out the household’s equity. A fall of more than 10% would place the household ‘underwater’. 10.12 Banks, housing, and the global financial crisisfinancial deregulationPolicies allowing banks and other financial institutions greater freedom in the types of financial assets they can sell, as well as other practices.Before the 1980s, financial institutions had been restricted in the kinds of loans they could make and in the interest rates they could charge. Financial deregulation generated aggressive competition for customers, and gave those customers much easier access to credit. Financial deregulation and subprime borrowerssubprime borrowerAn individual with a low credit rating and a high risk of default. See also: default risk, subprime mortgage.Moreover, in the boom period before the global financial crisis, house prices were expected to rise, and the riskiness of home loans to the banks fell. As a result, banks extended more loans. The opportunities for poor people to borrow for a home loan expanded as lenders asked for lower deposits, or even no deposit at all. This new class of homeowners were called subprime borrowers, and the effect of this deregulation in the US is shown in Figure 10.14. Fullscreen Figure 10.14 The household debt-to-income ratio and house prices in the US (1950–2020). Financial deregulation and bank leverageIn the context of the deregulated financial system, banks increased their borrowing. This enabled them:
Just as households took on more mortgage debt, banks also became more leveraged. Figure 10.15 shows the leverage of US investment banks and all UK banks. Fullscreen Figure 10.15 Leverage ratio of banks in the UK and US (1960–2018). In the US, the leverage ratio of investment banks was between 12 and 14 in the late 1970s, rising to more than 30 in the early 1990s. It hit 40 in 1996 and peaked at 43 just before the financial crisis. By contrast, the leverage of the median UK bank remained at the level of around 20 until 2000. Leverage then increased very rapidly to a peak of 48 in 2007. The subprime housing crisis of 2007subprime mortgageA residential mortgage issued to a high-risk borrower, for example, a borrower with a history of bankruptcy and delayed repayments. See also: subprime borrower.The interrelated growth of the indebtedness of poor households in the US and global banks meant that, when homeowners began to default on their repayments in 2006, the effects could not be contained within the local or even the national economy. The crisis caused by the problems of subprime mortgages in the US spread to other countries. Financial markets were frightened on 9 August 2007 when French bank BNP Paribas halted withdrawals from three investment funds because it could not ‘fairly’ value financial products based on US mortgage-based securities—it simply did not know how much they were worth. The recession that swept across the world in 2008–09 was the worst contraction of the global economy since the Great Depression. The financial crisis took the world by surprise. The world’s economic policymakers were unprepared. To find out more about the global financial crisis, read Sections 17.10 and 17.11 of The Economy. Question 10.12 Choose the correct answer(s)Figure 10.14 shows the household debt-to-income ratio and the house prices in the US between 1950 and 2017. Based on this information, which of the following statements are correct?
Question 10.13 Choose the correct answer(s)Figure 10.15 is the graph of leverage of banks in the UK and the US between 1960 and 2018. The leverage ratio is defined as the ratio of the banks’ total assets to their equity. Which of the following statements are correct?
10.13 The role of banks in the crisisHouse prices and bank solvencyThe financial crisis was a banking crisis. The banks were in trouble because they had become highly leveraged and were vulnerable to a fall in the value of the financial assets that they had accumulated on their balance sheets (refer back to Figure 10.15 for the leverage of US and UK banks). The values of the financial assets were in turn based on house prices. With a ratio of net worth to assets of 4%, as in the example of the bank in Figure 10.5, a fall in the value of its assets of an amount greater than this will render a bank insolvent. House prices fell by much more than 4% in many countries in the 2008–09 financial crisis. In fact, the peak-to-trough fall in house price indices for Ireland, Spain, and the US were 50.3%, 31.6%, and 34.6% respectively. This created a problem of solvency for the banks. Just as with the underwater households, banks were in danger of their net worth being wiped out.
Governments rescue banksAcross the advanced economies, banks failed and were rescued by governments. external effectWhen a person’s action confers a benefit or cost on some other individual, and this effect is not taken account of by the person in deciding to take the action. It is external because it is not included in the decision-making process of the person taking the action. Positive effects refer to benefits, and negative effects to costs, that are experienced by others. A person breathing second-hand smoke from someone else’s cigarette is a negative external effect. Enjoying your neighbour’s beautiful garden is a positive external effect. Also known as: externality. See also: incomplete contract, market failure, external benefit, external cost.market failureWhen markets allocate resources in a Pareto-inefficient way.principal–agent relationshipThis is an asymmetrical relationship in which one party (the principal) benefits from some action or attribute of the other party (the agent) about which the principal’s information is not sufficient to enforce in a complete contract. See also: incomplete contract. Also known as: principal–agent problem.In Section 10.6, we highlighted the fact that banks do not bear all the costs of bankruptcy. The bank owners know that others (taxpayers or other banks) will bear some of the costs of the banks’ risk-taking activity. So the banks take more risks than they would take if they bore all the costs of their actions. As we shall see in the following unit, excess risk-taking by banks is an example of a negative external effect leading to a market failure. It arises because of the principal–agent problem between the government (the principal) and the agent (the bank). The government is the principal because it has a direct interest in (and is held responsible for) maintaining a healthy economy, and will bear the cost of bank bailout as a consequence of excessive risk-taking by banks. Governments cannot write a complete set of rules that would align the interests of the banks with those of the government or the taxpayer. The first row in Figure 10.16 summarizes the principal–agent problem between the government and the banks; the second and third rows review the similar principal–agent problems introduced in Units 6 and 9.
Figure 10.16 Principal–agent problems: The credit market and the labour market. Banks expend substantial resources lobbying governments to bail them out when they fail. But there are reasons beyond the self-interest of banks to think that the failure of a bank is different from the failure of a typical firm or household and more dangerous to the stability of a capitalist economy. Banks play a central role in the payments system of the economy and in providing loans to households and firms. Chains of assets and liabilities link banks, and those chains had extended across the world in the years before the financial crisis. Thus, the banking system, like an electricity grid, is a network. The failure of one of the elements in this connected network creates pressure on every other element. Just as happens in an electricity grid, the network effects in a banking system may create a cascade of subsequent failures, as occurred between 2006 and 2008.
Question 10.14 Choose the correct answer(s)Which of the following statements about the principal–agent problem in the banking system are correct?
10.14 Banking, markets, and moralsThe deregulation of financial markets during the three decades prior to the financial crisis of 2008 not only created an institutional environment vulnerable to instability, it also altered the culture of the banking industry in many countries, changing the social norms and informal rules of moral behaviour that governed the business. In many occupations, such as medicine, professional bodies uphold an expectation of pro-social behaviour and truth-telling among their members. Members are expected to take account of the effects of their actions on others. Banking in the main financial centres of the world was no different. But support for financial deregulation included the argument that the pursuit of profits on substantially unregulated financial markets alone was sufficient to produce socially beneficial outcomes. And if this is really the case, why not dispense with the traditional social norms among bankers, auditors, and accountants that they should take account of the interests of the debtors, investors, savers, shareholders, customers, and others with whom they interact? Many accepted the logic that a deregulated market would punish ‘bad’ firms and individuals. ‘Greed is good’, a slogan from a 1987 film, Wall Street, expressed the idea that we can count on markets, not morals to get rid of the ‘bad actors’. This seemed to give bankers license to take advantage of their expertise and access to private information to profit in ways that ultimately contributed to the destabilization of the entire financial system, for example, taking on too much risk, and engaging in misleading if not illegal sales pitches. As a result, deregulation of financial markets contributed to the financial crisis, not only by changing the rules of the game in ways that made bubbles and busts more likely, but it also changed how bankers and others acted, and in ways that exacerbated the crisis. The transformation of the culture of The City (of London), the hub of the UK financial system and the largest financial centre in the world, illustrates this process. Deregulation and ‘unethical behaviour’ in the City of LondonPrior to deregulation in the so-called ‘Big Bang’ of 1986, The City had a highly developed ethical culture where participants were vetted to ensure they were deemed ‘fit and proper’ to carry out their functions. The system led to the groundless exclusion of many women and ethnic minorities. But individuals, firms, and partnerships that, in the eyes of the leading firms and individuals, didn’t display pro-social preferences could not join the professional networks of The City. Investment bankers depended very much on their reputation, which was developed through long-term relationships with clients and other counterparties within The City. Most banks had centralized, and demanding, inspection regimes which ensured that rules and procedures were strictly followed and clients were served well.14 The City was deregulated progressively over the closing decades of the twentieth century, and by the eve of the global financial crisis, it had embraced the prevailing global banking culture, based on the idea that making profits is not only the bottom line, it is all that matters, as long as markets are competitive. A junior policy advisor to Prime Minister Margaret Thatcher expressed concern about the likely resulting ‘unethical behaviour’ and that financial deregulation could lead to ‘increased risk-taking’ and ‘boom and bust’. Events in The City and around the world proved him correct.15 In the run-up to the financial crisis, a violation of their responsibilities to both customers and shareholders, US issuers and underwriters of mortgage-backed securities (MBSs) bet against them even as they sold them to trusted clients and lied to shareholders about their own MBS holdings. (See the video in Exercise 10.6 for further details). Most of the largest mortgage originators and MBS issuers and underwriters have been implicated in regulatory settlements and have since paid multibillion-dollar penalties. In the UK, Barclays and four former executives have been charged with fraud dating back to 2008.16 To see why trusting the deregulated market to produce socially beneficial effects might have failed, think about a particular firm, hiring staff to sell MBSs to the public. Initially, the firm instils a code of conduct that the sales pitch should inform the potential buyer fully and honestly about the product being sold. But the idea that market competition would be sufficient to discipline sellers led to the adoption of new ways of compensating those selling financial products—pay was closely linked to how much they sold. Because these incentive-based compensation plans rewarded sales without monitoring the pitch or other sales techniques, they could be easily gamed by sellers who cut corners to make the products look safer than they were. A vicious circleThe problem is a very general one in economics. Just like in an employment contract, these compensation plans for sellers typically cover some aspects of a transaction, like the amounts sold, but cannot cover more subtle aspects, like the degree of honesty in the sales pitch that results in the sale. Even if the firm wishes all customers to be fully informed, the use of such an incentive plan will lead at least some sellers to misinform buyers so as to increase their pay. Ethical traders were disadvantaged under these schemes, as the corner-cutters were able to bring in more sales. The result would be the advancement of the unethical employees within the firm, and perhaps the conversion of some of the ethical traders to less scrupulous methods. Banks also increasingly took risks, for which the costs of failure would be paid by the owners of other banks (who would become insolvent if one of the banks that owed them money failed), or by tax payers, if governments bailed out ‘too big to fail’ banks. Why morals as well as markets?Why is it important that bankers and others in financial markets be guided by morals as well as markets? A headline from a previous financial crisis is a place to start. In the aftermath of the stock market crash of 1987 (the same year that the ‘greed is good’ film was released), the New York Times headlined an editorial, ‘Ban Greed? No: Harness It’, which continued:
As the housing bubble burst in 2008 and the financial crisis unfolded, many US homeowners found that their properties were worth less than their mortgage obligations to the bank. Some of these ‘underwater owners’ did the maths and strategically defaulted on their loans, sending the bank the keys and walking away. Unlike the New York Times two decades earlier, in 2010 Don Bisenius, then the executive vice president of Freddie Mac, the US Federal Home Loan Mortgage Corporation, made a plea for moral behaviour by homeowners in the economy on the organization’s website. He suggested that, although it might be individually advantageous to default, if default is widespread, communities and future home buyers would be harmed:
Rather than trusting that by getting the prices right the market would induce people to internalize the external effects of their actions, Freddie Mac urged that borrowers considering a strategic default should recognize the damaging impact their actions could have on others. In short, the hope was that morals would do the work of prices. There was no shortage of moral reasoning on the question. Large majorities of those surveyed held that strategic default is immoral. Yet most defaults were not strategic at all—they were impelled by job loss or other misfortunes. And Freddie Mac’s plea for morality from underwater debtors could not have been very persuasive for those who accused the financial institutions of having double standards. After having pursued their own interests single-mindedly for decades, they now implored home owners to act otherwise when their own house of cards tumbled. Although the main determinant of strategic default was economic—how far underwater the property was—defaulters were supported by others who gave moral reasons, such as predatory and unfair banking practices.
Question 10.15 Choose the correct answer(s)Which of the following statements about morals, markets, and money are correct?
10.15 ConclusionThis unit has explored the workings of a modern-day financial system, explaining how its main actors (commercial banks, the central bank, governments, pension funds, households, and non-bank firms) interact on various stages (including money markets, credit markets, stock exchanges, and bond markets) to buy and sell different types of financial assets. Banks play a key role in the economy, as they create bank money by extending new loans and provide maturity transformation services. These functions, however, expose them to both default risk and liquidity risk, the latter making bank runs possible in the event that many depositors attempt to withdraw their funds at the same time. As the sole supplier of base money (which banks require for net daily transfers with other banks and to meet demand from depositors), the central bank can set the price of borrowing by choosing the policy interest rate. While the short-term interest rate at which banks borrow and lend in the money market is typically close to the policy rate, the bank lending rate is ordinarily substantially higher. The difference is called the markup or spread on commercial lending and is the basis of the commercial banks’ profits. Using balance sheets, we have characterized banks as debt-heavy, profit-oriented firms whose interconnectedness, systemic importance to the economy, and political influence sometimes motivate governments to bail them out in the case of insolvency. We have also seen how a high leverage ratio implies that a small change in the value of a bank’s assets will wipe out its equity base. A principal–agent problem arises as the central bank (the principal) would like commercial banks (the agents) to avoid overly risky practices that they may find profitable, given that taxpayers are likely to bear much of the costs of a bailout should insolvency result. The concept of present value has helped us value assets that provide a stream of income in the future. Furthermore, based on the feasible set and indifference curves of our constrained choice toolkit, we have analysed the trade-off between risk and return, and the important role that the degree of risk aversion (reflected in the slope of the indifference curves) plays in an individual’s choice between risk-free bonds and riskier shares. Wealthier people and those exposed to less risk are less risk averse. We also showed why share prices can depart substantially from their fundamental value, resulting in bubbles. A precursor to the global financial crisis was a house-price boom that enabled households to borrow more, based on the increasing value of their collateral (their house). At the same time, financial deregulation allowed banks to increase their leverage, exposing them to greater risk, and generated aggressive competition for customers, including subprime borrowers, many of whom would later default on their mortgages as the housing bubble burst. Overall, the financial crisis has re-emphasized the importance of government regulation of financial markets as well as moral and ethical behaviour as essential preconditions for market mechanisms to produce acceptable outcomes, especially in cases of incomplete contracts. 10.16 Doing Economics: Characteristics of banking systems around the worldIn Sections 10.13 and 10.14, we discussed the role of banks in the 2008 global financial crisis. Aside from emphasizing the need for moral and ethical behaviour in the banking system to produce acceptable outcomes, the crisis also highlighted important issues in data collection and measurement, as policymakers lacked good quality, cross-country, and cross-time (so-called ‘time series’) data on financial systems. In Doing Economics Empirical Project 10, we will use the World Bank’s Global Financial Development Database to explore the following questions:
Go to Doing Economics Empirical Project 10 to work on this project.
10.17 ReferencesConsult CORE’s Fact checker for a detailed list of sources.
Which of the following is not true about huff gravity model?Which of the following statements is not true about Huff Gravity Model? The greater travel time or distance for the consumer, compared with that of competing locations, the higher probability that the consumer will shop at the location.
Which of the following is typically the step after conducting a competitive analysis during site selection?Which of the following is typically the step after conducting a competitive analysis during site selection? Define present trade area.
Which analysis tool compares the local average expenditure by product to the national average amount expended?The Spending Potential Index (SPI) compares the average local expenditure to the average national expenditure.
What describes the analog method and regression analysis?Multiple regression analysis uses statistics rather than judgment to predict sales at existing store locations. Which best describes the analog method and regression analysis? Approaches for using information about the trade area to estimate the potential sales for a store at the location.
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