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HISTORICAL EPOCHS IN THE �GLOBAL ECONOMY

Econ1018: Economic Theory 1B - Macroeconomics for Economists

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Overview

  • The Fourth Teaching Bloc of First Year Economic Theory focuses on Macroeconomics
    • History of global economy and the South African economy
    • Labour Market, Unemployment, Inflation and Monetary Policy
    • Technological change and employment in the long-run
    • Open economy macroeconomics and gains from trade
    • Public Policy, economics and politics
  • The Fourth Bloc is taught by Dr Kenneth Creamer, Mr Ramilane Mohlakoane, with assistance from Professor Michael Sachs
  • Kenneth Creamer can be contacted on kenneth.creamer@wits.ac.za
  • Ramilane Mohlakoane can be contacted on ramilane6@gmail.com

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Overview

    • Brief history of growth in South Africa
    • A century of macroeconomic change
    • Impact of the Covid-19 pandemic
    • Materials:
    • Core’s “The Economy” Unit 17 on The Great Depression, Golden Age, and Global Financial Crisis
    • Part of Core’s Unit 10 on Banking and Money

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South Africa’s GDP growth rate 1946 to 2019

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Historical background

  • Apartheid growth model (1950’s and 1960’s)
  • SA characterised as Colonialism of a Special Time (CST) settler and colonised living together in one country, period of very unequal growth characterised by super-exploitation and racial exclusion, as well as inward industrialisation around SA’s Minerals Energy Complex (MEC) (unlike pure extractive colonialism in most parts of African and the rest of the colonised world)
  • Crisis of apartheid (1970’s and 1980’s)
  • Initially apartheid was functional to capitalism, but in the 1970’s it became dysfunctional – not producing the internal market, the skills or the stability needed - “The apartheid Form became a fetter to capitalist development” (as well as the impact of intensified struggle and international isolation)

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Historical background (2)

  • Initial Post-apartheid period (Transition to democracy 1994 to 2008)
  • Growth dividend of peaceful settlement with some growth and employment creation, increasingly open to trade and part of globalising world economy, but not enough investment and strategic state guidance of the economy to overcome the historical structure of race, class and gender inequality
  • The comparatively high growth rate in the early 2000’s until the Great Recession was largely driven by high global commodity prices
  • Recent Post-apartheid period (Persistent low growth 2009 to 2021)
  • Hostile global conditions (global financial crisis and mineral prices falling as China adjusted its growth model) combined with and state capture and corruption resulting in low growth and social and economic indicators in wrong direction
  • Current challenge: Need new growth and transformation model - infrastructure, basic needs, green transition, digital transition, capable developmental state, racial and social cohesion to guide SA’s economy to a period of rapid and sustained inclusive growth

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Comparing inequality in SA in 2006 and 2015

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SA Household asset ownership 2009, 2011, 2015

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SA Household access to water and electricity 2011

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Global History – A century of macroeconomic crisis and change

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The last 100 years of global economic history

  • There have been three distinctive economic epochs in the last 100 years
    • After WW1: The Roaring Twenties ending with the Great Depression
    • The Golden Age of Capitalism ending with Stagflation, and
    • The Great Moderation ending with Financial Crisis of 2008
  • Now COVID-19 global pandemic

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Each epoch ended in a crisis

  • The end of each of these epochs was a sign that institutions that had governed the economy to that point had failed.
  • The Roaring Twenties - the stock market crash of 1929 and the Great Depression
  • The Golden Age - decline in profits and investment and the oil shock and stagflation of the 1970’s
  • The Great Moderation - the Financial Crisis of 2008-09
  • The policies adopted in response to the end of the Golden Age restored high profits and low inflation at the cost of rising inequality, but did not restore the investment and productivity growth of the previous epoch, and made economies vulnerable to debt-fuelled financial booms such as the Financial Crisis of 2008-09

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1. Roaring Twenties ending in the Great Depression

  • 1921 to 1941
  • The World economy was growing (although not in Germany) and the stock markets were booming in the 1920’s.
  • The crisis of the Great Depression is the defining feature of the first epoch. It inspired Keynes’ concept of aggregate demand, now standard in economics teaching and policymaking.

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2. The Golden Age of Capitalism ending in Stagflation

  • 1948 to 1979
  • The golden age epoch stretched from the end of the Second World War to 1979, and is named for the economic success of the 1950s and 1960s.
  • The golden age ended in the 1970s with a crisis of profitability and productivity, and the emphasis in economics teaching and policymaking shifted away from the role of aggregate demand toward supply-side problems, such as productivity and decisions by firms to enter and exit markets.

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3. The Great Moderation ending in the Financial Crisis

  • 1979 to 2015
  • In the most recent epoch, the global financial crisis caught the world by surprise.
  • The potential of a debt-fuelled boom to cause havoc was neglected during the preceding years of stable growth and seemingly successful macroeconomic management, which had been called the great moderation.

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Productivity over 100 years

  • Productivity growth: is the growth of hourly productivity in the business sector. The dashed blue lines show the average growth of productivity for each sub-period.
  • 1. Productivity growth hit low points in the Great Depression,
  • 2. The golden age of capitalism got its name due to the extraordinary productivity growth until late in that epoch.
  • 3. Productivity growth hit low points at the end of the golden age epoch in 1979, and in the wake of the financial crisis.

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Unemployment and productivity growth in the United States (1914-2015)�

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Unemployment over the 100 years

  • Unemployment:
  • 1. High unemployment dominated the first epoch.
  • 2. The success of the golden age was marked by low unemployment as well as high productivity growth.
  • 3. The end of the golden age produced spikes in unemployment in the mid 1970s and early 1980s. In the third epoch, unemployment was lower at each successive business cycle trough until the financial crisis, when high unemployment re-emerged.

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Income share of the top 1% in USA

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Inequality over the 100 years

  • Inequality: data on inequality for the US showing the income share of the top 1%.
  • 1. The richest 1% had nearly one-fifth of income in the late 1920s just before the Great Depression.
  • 2. Their share then steadily declined during the Golden Age of Capitalism
  • 3. During the Great Moderation the income share of the very rich was restored and surpassed 1920s levels.

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Changing features of the US economy

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COVID-19 pandemic

  • Global crisis – all over the world at the same time
  • Causing contraction on both the supply side and demand side of the economy
  • Job losses, businesses closing, taxes falling, spending on public health, income support and business support, public debt rising,
  • But, Financial system itself is not in crisis and can be used to respond to the crisis

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The Great Depression

  • Capitalism is a dynamic economic system - booms and recessions are a recurrent feature
  • But not all recessions are equal - in 1929 a downturn in the US business cycle similar to others in the preceding decade transformed into a large-scale economic disaster—the Great Depression.
  • Three simultaneous positive feedback mechanisms brought the American economy down in the 1930s:
  • Pessimism about the future – rise in S, fall in I and C
  • Failure of the banking system - decline in income meant loans could not be repaid and banks failed
  • Deflation – prices fall so real value of debts rose and could not be repaid (households delay Consumption)

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Effect of Great Depression on US economy (1928-1941)

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Government Policy response to Great Depression

  • Fiscal Policy – was not expansionary enough until WW2
  • Monetary policy – even though nominal interest was lower the real interest rate was higher due to deflation (r = R – ( - inflation))
  • Roosevelt’s New Deal – effective in changing expectations
    • Programmes to increase employment and Aggregate Demand (AD)
    • US left the gold standard in 1933 allowing US to have a more competitive currency (fixed rate of $20,67 per ounce of gold devalued to $35)
    • Reforms to banking system to avoid collapse of banks and bank runs
  • Note on Gold Standard: Leaving the gold standard allowed the US greater flexibility in managing its own aggregate demand (AD) using interest rates and money supply, while on the gold standard the US had to set interest rates to fix the USD to the gold price and could not simultaneously use the interest rate to stimulate AD
  • Note on AD: The change in people’s beliefs about the future was just as important as these policy changes. On 4 March 1933, Roosevelt had told Americans that: ‘the only thing we have to fear is fear itself’
  • Spending decisions have a forward-looking focus. This makes expectations relevant. If people believe that aggregate demand is going to increase (output rise, unemployment fall), they will feel more confident, spend more, and give a further boost to aggregate demand. People will increase their spending, which will reinforce the actions of government – helping to advance a ‘self-fulfilling prophecy’.

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Golden Age – high growth and low unemployment

  • The growth rate of GDP per capita was more than two-and-a-half times as high during the golden age as in any other period.
  • Instead of doubling every 50 years, living standards were doubling every 20 years.
  • Saving and investment rose and capital stock grew almost twice as fast during the golden age
  • Key drivers:
    • Changes in economic policymaking and regulation: Larger role for the the state and clear Keynesian stabilisation role for fiscal and monetary policies, also a new system of fixed by adjustable exchange rates the Bretton Woods system
    • New institutional arrangements between employers and workers: Because trade unions and workers’ political parties were now in a stronger position to bargain for a share of the productivity gains, they supported innovation—even when it meant temporary job destruction

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Postwar Accord

  • An informal agreement (taking different forms in different countries) among employers, governments, and trade unions that created the conditions for rapid economic growth in advanced economies from the late 1940s to the early 1970s.
  • Trade unions accepted the basic institutions of the capitalist economy and did not resist technological change in return for low unemployment, tolerance of unions and other rights, and a rise in real incomes that matched rises in productivity.
  • Note: During this period many African and Asian countries experienced decolonisation and own rule. South Africa displayed much of the high economic growth and productivity growth, but there was sharp racial inequality as the 1960’s and 1970’s was also a period of ‘high apartheid’ where economic growth was built on the system of super-exploitation of black workers.

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The End of the Golden Age

  • The virtuous circle of the golden age began to break down in the late 1960s
  • Years of low unemployment convinced workers that they had little chance of losing their jobs. Their demands for improvements in working conditions and higher wages drove down the profit rate.
  • The postwar accord and its rationale of enlarging the pie gave way to a contest over the size of the slice that each group could get. (rising rate of strikes in advanced economies and falling profits)
  • The oil price shock of 1973 – also pushed up inflation and reduced real wages
  • This set the stage for the period of combined inflation and stagnation (unemployment) called stagflation

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End of the golden age

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Strikes and wages relative to share prices in advanced economies (1950-2002)

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After the golden age

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Unemployment and inflation in advanced economies (1960-2015)

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Demand-side vs Supply-side crises

  • The Great Depression of the 1930s had been propelled by problems of aggregate demand and for this reason it has been called a demand-side crisis.
  • The end of the golden age has been called a supply-side crisis, because problems on the supply side of the economy depressed the profit rate, the rate of investment, and the rate of productivity growth.

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After Stagflation

  • The third major epoch during the last 100 years of capitalism began in 1979.
  • Across the advanced economies, policymakers focused on supply-side measures to restore investment and job creation.
  • Expanding aggregate demand would not help as it would accelerate inflation without reducing unemployment and low growth
  • Employers abandoned the accord (except in some northern European and Scandinavian countries) and policymakers turned to different institutional arrangements to restore incentives for investment.
  • The balance of power shifted towards capital and away from workers

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Supply-side policies

  • Restrictive monetary and fiscal policy: Governments showed that in stabilising inflation they were prepared to allow unemployment to rise, weakening the position of workers and halting the rise in real wages
  • Supply-side interventions:
  • cuts in unemployment benefits
  • legislation to reduce trade union power
  • changing legislation to make it easier to fire workers
  • policies to increase productivity and international competitiveness
  • cutting taxes on profits,
  • reform of competition policy to reduce monopoly power

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Consequences of supply-side policies

  • Wages: reduced bargaining power meant that productivity growth was not shared with workers, real wages barely changed in the 40 years after 1973.
  • Inflation: The period after the 1970’s until the global financial crisis of 2008 was called the great moderation because inflation was low and stable, and unemployment was falling.
  • Inequality: income inequality rose sharply as workers bargaining power was reduced
  • Investment: investment responded weakly to profit incentives so the rate of growth of capital stock declined
  • Profits: growth of profits unmatched by new investment helped cause the next crisis

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Financial Crisis of 2008-09

  • How can we make an argument that connects the 2008-09 financial crisis to the great moderation, and to long-run rising debt, house prices, and inequality?
  • Wages were not growing, but one way that working families (mainly in the US) could improve their consumption was to take out a home loan and financial deregulation and aggressive marketing by banks made it easier for working families to take on home loans that were too big to repay (unless it was assumed that the price of houses would always continue to rise – a ‘house price bubble’)
  • A household debt-to-income ratio of over 100 does not necessarily mean that the household is bankrupt. In a low interest rate environment such a high debt level can still be maintained. A household is bankrupt if its debt is higher than its assets, not its income. When the bubble burst the value of assets falls pushing many into bankruptcy (Assets<Debts).
  • financial deregulation - Policies allowing banks and other financial institutions greater freedom in the types of financial assets they can sell.

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Household debt-to-income ratio and house prices in the United States (1950-2015)

End of golden age of capitalism:

1973

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When housing bubble burst

  • 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 in the US spread to other countries.
  • 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.
  • They discovered belatedly that a long period of calm in financial markets could make a crisis more likely.

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The Minskian paradox

  • The Paradox: a period of moderation sows the seeds of the next crisis
  • In 1982, Minsky wrote Can ‘It’ Happen Again? about the way in which tranquil conditions lead firms to choose riskier methods of financing their investment. His warning went unheeded.

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  • Instead of producing increased vigilance, the calm conditions of the great moderation bred complacency among regulators and economists.
  • It was the increasingly risky behaviour of banks in reckless lending to the sub-prime (poor) housing market and related risky banking products (such as derivatives and securities), as Minsky had predicted, that created the conditions of increased financial fragility and set the scene for the crisis.

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What have economists learned from the last 100 years

1. Solutions become problems

  • Each epoch succeeded initially because the policies and institutions that had been adopted addressed the shortcomings of the previous epoch. But then policymakers and economists have been taken by surprise when virtuous circles have turned into vicious circles.

2. Solutions depend on the circumstances

  • No school of thought has policy advice that would have been good in every epoch. The value of competing approaches and insights depends on the situation.

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Economic solutions depend on circumstances

  • In analysing the Great Depression of the 1930’s Keynes realised that:
    • Instability is an intrinsic feature of the aggregate economy and aggregate demand can be stabilized by government policy.
  • In analysing Stagflation of the 1970’s Friedman realised that:
    • The need to maintain profits, investment, and productivity can limit the ability of a government to use aggregate demand policies to achieve low unemployment.
  • In predicting the Financial Crisis of 2008-09, Minsky realised that:
    • Debt-fuelled financial and housing bubbles can co-exist with low and stable inflation, and will destabilize an economy in the absence of appropriate regulations.

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Economic crisis of the COVID-19 Pandemic

  • The COVID-19 is not an endogenous economic crisis – it has an external cause - it is a health crisis, but it is crisis with serious economic consequences
  • COVID-19 has resulted in a global economic crisis
  • COVID-19 has resulted in a collapse of both supply and demand throughout the world
  • This leads to falling output, rising unemployment, falling investment, rising public and private debt, poverty

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Both Supply and demand had collapsed

  • First, COVID-19 was a Supply shock as production and global supply chains were disrupted (AS0 to AS1)
  • The Demand effects materialize as workers lose their jobs and consumption and investment fall (AD0 to AD1)
  • There is a feedback loop back in AS as firms face reduced demand and some shut down (AS1 to AS2), and then back to demand (AD1 to AD2)
  • Output (Q) falls and falls, and possibly prices too

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Impact of COVD-19

  • COVID-19 has laid-bare and amplified socio-economic problems in the world and in South Africa
  • South Africa - re-exposed high levels of inequality, underdevelopment, poor service delivery, weak state capacity, low growth, unemployment
  • South Africa also faces rising national debt as outlined in government’s June 2020 Supplementary Budget

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Covid-19 Crisis in South Africa

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Covid-19 Crisis in South Africa

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Understanding Banking and Money (From Core Unit 10)

  • Bank failures were involved in the global financial crisis of 2008.
  • Like any other firm in a capitalist system, banks can also 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.
  • Before looking at the kinds of failures banks can experience it is useful to look more deeply at how banking works…

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How banks operate and the process of money creation

  • A bank is a firm that makes profits through its lending and borrowing activities.
  • The interest they pay on deposits is lower than the interest they charge when they make loans, and this allows banks to make profits.
  • A certain category of money is knowns as high powered money, this is made up of cash (notes and coins) and accounts 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.
  • A broader category of money includes money created by commercial banks when they make loans. (Banking is a fractional system as commercial banks are only required to hold a fraction of their overall deposits).
  • Broader Money Supply is a function of:
    • the Reserve requirement set by government and the central bank,
    • the amount of Excess Reserves help by commercial banks and
    • the Cash to Deposit Ratio held by private individuals and firms
  • It is useful to explain this using bank balance sheets.

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Banking Balance Sheets

  • let us suppose in this case that Marco has $100 in cash and he puts it in a bank account in Abacus Bank. Abacus Bank will put the cash in a vault, or it will deposit 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

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  • 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 paying Gino using a debit card).
  • This is shown on the balance sheets of the two banks: Abacus Bank’s assets and liabilities both go down by $20
  • Bonus Bank’s assets are increased by this addition of $20 of base money, and its liabilities increase by $20 payable on demand to Gino.
  • This illustrates the payment services provided by banks. So far we have just considered transactions using base money, or legal tender. We now show how banks create money in the process of making loans.

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Bank loans expand the money supply

  • 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.
  • 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 it is owed by Gino, and its liabilities have grown by the $100 it has credited to his bank account.
  • 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.
  • Base money remains essential, however, partly because customers sometimes take out cash, but also because when Gino wants to spend his loan, his bank has to transfer base money.
  • Base money plus bank money is called broad money.

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  • Suppose Gino employs Marco to work in his shop, and pays him $10. (Marco increases holdings from $80 to $90)
  • Then Bonus Bank has to transfer $10 of base money from Gino’s bank account to Marco’s bank account in Abacus Bank (Gino decreases holdings from $120 to $110)
  • In practice, banks make many transactions to one another in a given day, most cancelling each other out, and they settle up at the end of each day. So at the end of each day, each bank will transfer or receive the net amount of transactions they have made.
  • This means they do not need to have available the legal tender to cover all transactions or demand for cash (known as fractional reserve system).

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  • Because of the loan, the total ‘money’ in the banking system has grown, to $200
  • Creating money may sound like an easy way to make profits, but the money banks create is a liability, not an asset, because it has to be paid on demand to the borrower.
  • It is the corresponding loan that is an asset for the bank. Banks make profits out of this process by charging interest on the loans. So if Bonus Bank lends Gino the $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.

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Banks assist with maturity transformation

  • By taking deposits and making loans, banks provide the economy with the service of 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.

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Bank Loans

  • Loans made by banks to firms are the firm's liabilities and the bank's assets.
  • Household deposits are the banks’ liabilities and the households’ assets.
  • The lenders’ deposits are liquid whereas bank loans to borrowers are illiquid.

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This exposes banks to liquidity risk

  • While 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).
  • Banks make money by lending much more than they hold in legal tender, because they count on depositors not to need their funds all at the same time.
  • The risk they face is that depositors can all decide they want to withdraw money instantaneously, but the money won’t be there.
  • In previous figure, 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.

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The 2008 financial crisis revisited

  • The 2008 financial crisis was rooted in the US banking system and linked banks in Europe and around the world
  • Bank assets lost their value as the had assumed that housing prices would always continue to rise
  • When housing prices fell the value of bank assets (held in housing linked investment products) fell sharply
  • Many banks found that they faced a liquidity crunch
  • For some banks liabilities > assets and they were insolvent
  • Governments around the world had to take action to save the banks so as to manage a very serious banking, financial and economic crisis
  • Allowing banks to borrow from the central bank at a penalty rate of interest can deal with a bank’s liquidity but not solvency problem.
  • More fundamentally if a bank is insolvent (liabilities > assets) then the central bank cannot save them by providing liquidity, either governments or other banks need to step in an provide capital (so that assets > liabilities) or they must be allowed to fail

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