1. Money, The Monetary System, and Inflation
Lesson 6b
Money, The Monetary System, and Inflation

2. THE MEANING OF MONEY
Money is the set of assets in an economy that people regularly use to buy goods and services from other people.

3. Money has three functions in the economy:
The Functions of Money
Money has three functions in the economy:
Medium of exchange
Unit of account
Store of value

4. The Functions of Money Medium of Exchange
A medium of exchange is an item that buyers give to sellers when they want to purchase goods and services.
A medium of exchange is anything that is readily acceptable as payment.

5. The Functions of Money Unit of Account Store of Value
A unit of account is the yardstick people use to post prices and record debts.
Store of Value
A store of value is an item that people can use to transfer purchasing power from the present to the future.

6. The Functions of Money Liquidity
Liquidity is the ease with which an asset can be converted into the economy’s medium of exchange.

7. Commodity money takes the form of a commodity with intrinsic value.
The Kinds of Money
Commodity money takes the form of a commodity with intrinsic value.
Examples: Gold, silver, cigarettes.
Fiat money is used as money because of government decree.
It does not have intrinsic value.
Examples: Coins, currency, check deposits.

8. Money in the U.S. Economy
Currency is the paper bills and coins in the hands of the public.
Demand deposits are balances in bank accounts that depositors can access on demand by writing a check.

9. Figure 1 Money in the U.S. Economy
Billions
of Dollars M2
$5,455 •
Savings deposits
Small time deposits
Money market
mutual funds
A few minor categories
($4,276 billion) M1
$1,179 •
Currency
($580 billion)
Demand deposits
Traveler ’
s checks
Other checkable deposits
($599 billion) •
Everything in M1
($1,179 billion)
Copyright©2003 Southwestern/Thomson Learning

10. CASE STUDY: Where Is All The Currency?
In 2001 there was about $580 billion of U.S. currency outstanding.
That is $2,734 in currency per adult.
Who is holding all this currency?
Currency held abroad
Currency held by illegal entities

11. THE CENTRAL BANK SYSTEM
The Bank of China serves as the nation’s central bank (CB)
It is designed to oversee the banking system.
It regulates the quantity of money in the economy.
It is the Government’s bank
Tax revenue is deposited
Government payments are made

12. The Bank of England Organization
The Monetary Policy Committee (MPC)
Serves as the main policy-making organ of the UK Monetary System.
Meets approximately every four weeks to review the economy.

13. Monetary Policy
Monetary policy is the setting of the money supply by policymakers in the central bank
The money supply refers to the quantity of money available in the economy.

14. Central Bank (CB) Functions
Three Primary Functions
Regulates banks to ensure they follow federal laws intended to promote safe and sound banking practices.
Acts as a banker’s bank, making loans to banks and as a lender of last resort.
Conducts monetary policy by controlling the money supply.

15. Open-Market Operations
The money supply is the quantity of money available in the economy.
The primary way in which the CB changes the money supply is through open-market operations.
The CB purchases and sells government bonds.
To increase the money supply, the CB buys government bonds from the public*.
To decrease the money supply, the CB sells government bonds to the public*.

16. BANKS AND THE MONEY SUPPLY
Banks can influence the quantity of demand deposits in the economy and the money supply.

17. BANKS AND THE MONEY SUPPLY
Reserves are deposits that banks have received but have not loaned out.
In a fractional-reserve banking system, banks hold a fraction of the money deposited as reserves and lend out the rest.

18. BANKS AND THE MONEY SUPPLY
Reserve Ratio
The reserve ratio is the fraction of deposits that banks hold as reserves.

19. Money Creation with Fractional-Reserve Banking
When a bank makes a loan from its reserves, the money supply increases.
The money supply is affected by the amount deposited in banks and the amount that banks loan.
Deposits into a bank are recorded as both assets and liabilities.
The fraction of total deposits that a bank has to keep as reserves is called the reserve ratio.
Loans become an asset to the bank.

20. Money Creation with Fractional-Reserve Banking
This T-Account shows a bank that…
accepts deposits,
keeps a portion as reserves,
and lends out the rest.
It assumes a reserve ratio of 10%.
Assets
Liabilities
First National Bank
Reserves
$10.00
Loans
$90.00
Deposits
$100.00
Total Assets
Total Liabilities

21. Money Creation with Fractional-Reserve Banking
When one bank loans money, that money is generally deposited into another bank.
This creates more deposits and more reserves to be lent out.
When a bank makes a loan from its reserves, the money supply increases.

22. The Money Multiplier
How much money is eventually created in this economy?

23. The Money Multiplier
The money multiplier is the amount of money the banking system generates with each dollar of reserves.

24. The Money Multiplier Money Supply = $190.00! First National Bank
Assets
Liabilities
First National Bank
Reserves
$10.00
Loans
$90.00
Deposits
$100.00
Total Assets
Total Liabilities
Second National Bank
Assets
Liabilities
Reserves
$9.00
Loans
$81.00
Deposits
$90.00
Total Assets
$90.00
Total Liabilities
$90.00
Money Supply = $190.00!

25. The Money Multiplier
The money multiplier is the reciprocal of the reserve ratio:
M = 1/R
With a reserve requirement, R = 20% or 1/5,
The multiplier is 5.

26. The CB’s Tools of Monetary Control
The CB has three tools in its monetary toolbox:
Open-market operations
Changing the reserve requirement
Changing the discount rate

27. Open-Market Operations
The CB conducts open-market operations when it buys government bonds from or sells government bonds to the public:
When the CB buys government bonds, the money supply increases.
The money supply decreases when the CB sells government bonds.

28. Reserve Requirements
The CB also influences the money supply with reserve requirements.
Reserve requirements are regulations on the minimum amount of reserves that banks must hold against deposits.

29. Changing the Reserve Requirement
The reserve requirement is the amount (%) of a bank’s total reserves that may not be loaned out.
Increasing the reserve requirement decreases the money supply.
Decreasing the reserve requirement increases the money supply.

30. Changing the Discount Rate
The discount rate is the interest rate the CB charges banks for loans.
Increasing the discount rate decreases the money supply.
Decreasing the discount rate increases the money supply.

31. Problems in Controlling the Money Supply
The CB’s control of the money supply is not precise.
The CB must wrestle with two problems that arise due to fractional-reserve banking.
It does not control the amount of money that households choose to hold as deposits in banks.
It does not control the amount of money that bankers choose to lend.

32. Summary
The term money refers to assets that people regularly use to buy goods and services.
Money serves three functions in an economy: as a medium of exchange, a unit of account, and a store of value.
Commodity money is money that has intrinsic value.
Fiat money is money without intrinsic value.

33. Summary
The Bank of England, Bank of China, the US Federal Reserve are examples of central banks that regulate the monetary system within a country
It controls the money supply through open-market operations or by changing reserve requirements or the discount rate.

34. Summary
When banks loan out their deposits, they increase the quantity of money in the economy.
Because the CB cannot control the amount bankers choose to lend or the amount households choose to deposit in banks, the CB’s control of the money supply is imperfect.

35. Money Growth and Inflation

36. The Meaning of Money
Money is the set of assets in an economy that people regularly use to buy goods and services from other people.

37. THE CLASSICAL THEORY OF INFLATION
Inflation is an increase in the overall level of prices.
Hyperinflation is an extraordinarily high rate of inflation.

38. THE CLASSICAL THEORY OF INFLATION
Inflation: Historical Aspects
Over the past 60 years, prices have risen on average about 5 percent per year.
Deflation, meaning decreasing average prices, occurred in the U.S. in the nineteenth century.
Hyperinflation refers to high rates of inflation such as Germany experienced in the 1920s.

39. THE CLASSICAL THEORY OF INFLATION
Inflation: Historical Aspects
In the 1970s prices rose by 7 percent per year.
During the 1990s, prices rose at an average rate of 2 percent per year.

40. THE CLASSICAL THEORY OF INFLATION
The quantity theory of money is used to explain the long-run determinants of the price level and the inflation rate.
Inflation is an economy-wide phenomenon that concerns the value of the economy’s medium of exchange.
When the overall price level rises, the value of money falls.

41. Money Supply, Money Demand, and Monetary Equilibrium
The money supply is a policy variable that is controlled by the CB.
Through instruments such as open-market operations, the CB directly controls the quantity of money supplied.
Bullet 2: Mankiw has removed the word, “directly”

42. Money Supply, Money Demand, and Monetary Equilibrium
Money demand has several determinants, including interest rates and the average level of prices in the economy.

43. Money Supply, Money Demand, and Monetary Equilibrium
People hold money because it is the medium of exchange.
The amount of money people choose to hold depends on the prices of goods and services.

44. Money Supply, Money Demand, and Monetary Equilibrium
In the long run, the overall level of prices adjusts to the level at which the demand for money equals the supply.

45. Figure 1 Money Supply, Money Demand, and the Equilibrium Price Level
Value of
Price
Money,
Quantity fixed
by the Fed
Money supply 1 / P
Level, P
(High) 1
Money
demand 1
(Low) 3 /
1.33 4 A 1 / 2 2
Equilibrium
value of
money
Equilibrium
price level 1 / 4 4
(Low)
(High)
Quantity of
Money
Copyright © South-Western

46. Figure 2 The Effects of Monetary Injection
Value of
Price
Money, M1
MS1 M2
MS2 1 / P
Level, P
(High) 1
Money
demand 1
(Low)
1. An increase
in the money
supply . . . 3 /
1.33 4
decreases
the value of
mone
y . . . 3.
. . . and
increases
the price
level. A 1 / 2 2 B 1 / 4 4
(Low)
(High)
Quantity of
Money
Copyright © South-Western

47. THE CLASSICAL THEORY OF INFLATION
The Quantity Theory of Money
How the price level is determined and why it might change over time is called the quantity theory of money.
The quantity of money available in the economy determines the value of money.
The primary cause of inflation is the growth in the quantity of money.

48. The Classical Dichotomy and Monetary Neutrality
Nominal variables are variables measured in monetary units.
Real variables are variables measured in physical units.

49. The Classical Dichotomy and Monetary Neutrality
According to Hume and others, real economic variables do not change with changes in the money supply.
According to the classical dichotomy, different forces influence real and nominal variables.
Changes in the money supply affect nominal variables but not real variables.

50. The Classical Dichotomy and Monetary Neutrality
The irrelevance of monetary changes for real variables is called monetary neutrality.

51. Velocity and the Quantity Equation
The velocity of money refers to the speed at which the typical dollar bill travels around the economy from wallet to wallet.

52. Velocity and the Quantity Equation
The quantity equation shows that an increase in the quantity of money in an economy must be reflected in one of three other variables:
the price level must rise,
the quantity of output must rise, or
the velocity of money must fall.

53. Figure 3 Nominal GDP, the Quantity of Money, and the Velocity of Money
Indexes
(1960 = 100)
2,000
Nominal GDP
1,500 M2
1,000
500
Velocity
1960
1965
1970
1975
1980
1985
1990
1995
2000
Copyright © South-Western

54. Velocity and the Quantity Equation
The Equilibrium Price Level, Inflation Rate, and the Quantity Theory of Money
The velocity of money is relatively stable over time.
When the Fed changes the quantity of money, it causes proportionate changes in the nominal value of output (P  Y).
Because money is neutral, money does not affect output.

55. CASE STUDY: Money and Prices during Four Hyperinflations
Hyperinflation is inflation that exceeds 50 percent per month.
Hyperinflation occurs in some countries because the government prints too much money to pay for its spending.
Align text for second bullet.

56. Figure 4 Money and Prices During Two Hyperinflations
(c) Germany
(d) Poland
Index
Index
(Jan = 100)
(Jan = 100)
100,000,000,000,000
10,000,000
Price level
1,000,000,000,000
1,000,000
Price level
10,000,000,000
Money
supply
100,000
Money
supply
100,000,000
1,000,000
10,000
10,000
1,000
100 1
100
1921
1922
1923
1924
1925
1921
1922
1923
1924
1925
Copyright © South-Western

57. The Inflation Tax
When the government raises revenue by printing money, it is said to levy an inflation tax.
An inflation tax is like a tax on everyone who holds money.
The inflation ends when the government institutes fiscal reforms such as cuts in government spending.

58. The real interest rate stays the same.
The Fisher Effect
The Fisher effect refers to a one-to-one adjustment of the nominal interest rate to the inflation rate.
According to the Fisher effect, when the rate of inflation rises, the nominal interest rate rises by the same amount.
The real interest rate stays the same.
The equation of the fisher effect must appear here or on a new next slide:
“Nominal interest rate = real interest rate + inflation rate”

59. Figure 5 The Nominal Interest Rate and the Inflation Rate
Percent
(per year) 15 12
Nominal interest rate 9 6
Inflation 3
1960
1965
1970
1975
1980
1985
1990
1995
2000
Copyright © South-Western

60. THE COSTS OF INFLATION A Fall in Purchasing Power?
Inflation does not in itself reduce people’s real purchasing power.

61. THE COSTS OF INFLATION Shoeleather costs Menu costs
Relative price variability
Tax distortions
Confusion and inconvenience
Arbitrary redistribution of wealth

62. Shoeleather Costs
Shoeleather costs are the resources wasted when inflation encourages people to reduce their money holdings.
Inflation reduces the real value of money, so people have an incentive to minimize their cash holdings.

63. Shoeleather Costs
Less cash requires more frequent trips to the bank to withdraw money from interest-bearing accounts.
The actual cost of reducing your money holdings is the time and convenience you must sacrifice to keep less money on hand.
Also, extra trips to the bank take time away from productive activities.

64. Menu Costs
Menu costs are the costs of adjusting prices.
During inflationary times, it is necessary to update price lists and other posted prices.
This is a resource-consuming process that takes away from other productive activities.

65. Relative-Price Variability and the Misallocation of Resources
Inflation distorts relative prices.
Consumer decisions are distorted, and markets are less able to allocate resources to their best use.

66. Inflation-Induced Tax Distortion
Inflation exaggerates the size of capital gains and increases the tax burden on this type of income.
With progressive taxation, capital gains are taxed more heavily.

67. Inflation-Induced Tax Distortion
The income tax treats the nominal interest earned on savings as income, even though part of the nominal interest rate merely compensates for inflation.
The after-tax real interest rate falls, making saving less attractive.

68. Confusion and Inconvenience
When the CB increases the money supply and creates inflation, it erodes the real value of the unit of account.
Inflation causes dollars/RMB/Pounds at different times to have different real values.
Therefore, with rising prices, it is more difficult to compare real revenues, costs, and profits over time.

69. A Special Cost of Unexpected Inflation: Arbitrary Redistribution of Wealth
Unexpected inflation redistributes wealth among the population in a way that has nothing to do with either merit or need.
These redistributions occur because many loans in the economy are specified in terms of the unit of account—money.

70. Summary
The overall level of prices in an economy adjusts to bring money supply and money demand into balance.
When the central bank increases the supply of money, it causes the price level to rise.
Persistent growth in the quantity of money supplied leads to continuing inflation.

71. Summary
The principle of money neutrality asserts that changes in the quantity of money influence nominal variables but not real variables.
A government can pay for its spending simply by printing more money.
This can result in an “inflation tax” and hyperinflation.

72. Summary
According to the Fisher effect, when the inflation rate rises, the nominal interest rate rises by the same amount, and the real interest rate stays the same.
Many people think that inflation makes them poorer because it raises the cost of what they buy.
This view is a fallacy because inflation also raises nominal incomes.

73. Summary Economists have identified six costs of inflation:
Shoeleather costs
Menu costs
Increased variability of relative prices
Unintended tax liability changes
Confusion and inconvenience
Arbitrary redistributions of wealth