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Principles of Macroeconomics 3 Chapter 11- Money and Banking, Study notes of Economics

The nature of money, the Canadian banking system, bank reserves, how money is created in the banking system, the money supply, the money demand curve, and how money affects aggregate demand. It covers topics such as the functions of money, coinage and goldsmiths, the Bank of Canada, commercial banks, and monetary equilibrium. It also discusses the monetary transmission mechanism and how changes in the demand for or supply of money lead to a shift of the aggregate demand curve in four stages.

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Principles of Macroeconomics 3
Chapter 11- Money and Banking
What is the Nature of Money?
- For money to be considered an asset, it must fulfill three functions:
1. It must serve as a medium of exchange, something that could be accepted for goods and services. An
alternative would be barter, which requires a double coincidence of wants.
2. It must be able to be used as a store of value, used to transport purchasing power. An advantage of
holding money is that it is liquid, making it portable and ready to use. The disadvantage is that its
value falls over time due to inflation.
3. It is a unit of account, meaning that money is a standard way of quoting prices.
Coinage and Goldsmiths
- The invention of coinage eliminated the need to weigh the metal at each transaction, but coins often
could not be taken at their face value because people would clip them.
- Gresham’s Law is the theory that bad money derives good money out of circulation.
- Goldsmiths would give their depositors receipts, promising to return the gold on demand so buyers
began to transfer the goldsmith's receipts when making a purchase, and the transferring of paper
receipts, rather than gold was the invention of paper money, which was backed by precious metal and
convertible on demand into this metal.
- Goldsmiths and banks discovered that it was not necessary to keep 1 ounce of gold in the vaults for
every claim to 1 ounce circulating as paper money, we say that such a currency is fractionally backed
by the reserves.
- Currency issued by private banks became rare and central banks took control of issuing currency.
- Money today is fiat money because it is decreed by the government to be legal tender.
- Money held by the public as deposits with commercial banks are deposit money, and banks create
money by issuing more promises to pay deposits than they have cash reserves available to pay out
What is the Canadian Banking System?
- The central bank acts as a banker to the commercial banking system, and often to the government as
well, and is usually the sole money-issuing authority.
- Financial intermediaries are privately owned institutions that serve the general public. They are the
intermediaries amid savers, from whom they take deposits, and borrowers, to whom they make loans.
- The organization of the Bank of Canada is designed to keep the operation of monetary policy, free
from day-to-day political influence. (1935)
- The Bank of Canada’s basic functions is to act as a banker to commercial banks to act as banker to the
federal government to regulate the money supply, and to support financial markets.
- A commercial bank is a privately owned profit-seeking institution that provides a variety of financial
services, such as accepting deposits from customers and making loans and other investments.
What are Bank Reserves?
- Bank reserves are the deposits a commercial bank has made with the Bank of Canada plus its cash on
hand, vault cash.
- 100% reserve banking is a situation in which banks’ reserves equal 100% of their deposits.
- The way that banks earn a profit is by making loans at higher interest rates than what they pay the
depositors for using their money.
- The modern banking system is therefore a fractional-reserve banking system, a banking system in
which bank reserves are less than deposits.
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Principles of Macroeconomics 3 Chapter 11 - Money and Banking What is the Nature of Money?

  • For money to be considered an asset, it must fulfill three functions:
  1. It must serve as a medium of exchange, something that could be accepted for goods and services. An alternative would be barter, which requires a double coincidence of wants.
  2. It must be able to be used as a store of value, used to transport purchasing power. An advantage of holding money is that it is liquid, making it portable and ready to use. The disadvantage is that its value falls over time due to inflation.
  3. It is a unit of account, meaning that money is a standard way of quoting prices. Coinage and Goldsmiths
  • The invention of coinage eliminated the need to weigh the metal at each transaction, but coins often could not be taken at their face value because people would clip them.
  • Gresham’s Law is the theory that bad money derives good money out of circulation.
  • Goldsmiths would give their depositors receipts, promising to return the gold on demand so buyers began to transfer the goldsmith's receipts when making a purchase, and the transferring of paper receipts, rather than gold was the invention of paper money, which was backed by precious metal and convertible on demand into this metal.
  • Goldsmiths and banks discovered that it was not necessary to keep 1 ounce of gold in the vaults for every claim to 1 ounce circulating as paper money, we say that such a currency is fractionally backed by the reserves.
  • Currency issued by private banks became rare and central banks took control of issuing currency.
  • Money today is fiat money because it is decreed by the government to be legal tender.
  • Money held by the public as deposits with commercial banks are deposit money, and banks create money by issuing more promises to pay deposits than they have cash reserves available to pay out What is the Canadian Banking System?
  • The central bank acts as a banker to the commercial banking system, and often to the government as well, and is usually the sole money-issuing authority.
  • Financial intermediaries are privately owned institutions that serve the general public. They are the intermediaries amid savers, from whom they take deposits, and borrowers, to whom they make loans.
  • The organization of the Bank of Canada is designed to keep the operation of monetary policy, free from day-to-day political influence. (1935)
  • The Bank of Canada’s basic functions is to act as a banker to commercial banks to act as banker to the federal government to regulate the money supply, and to support financial markets.
  • A commercial bank is a privately owned profit-seeking institution that provides a variety of financial services, such as accepting deposits from customers and making loans and other investments. What are Bank Reserves?
  • Bank reserves are the deposits a commercial bank has made with the Bank of Canada plus its cash on hand, vault cash.
  • 100% reserve banking is a situation in which banks’ reserves equal 100% of their deposits.
  • The way that banks earn a profit is by making loans at higher interest rates than what they pay the depositors for using their money.
  • The modern banking system is therefore a fractional-reserve banking system, a banking system in which bank reserves are less than deposits.
  • A bank’s reserve ratio is a fraction of the deposits, that it holds as reserves in the form of cash or deposits with the central bank. Reserves/Deposits = Reserve Ratio = v
  • The Banks target reserve ratio is the fraction of its deposit. It would ideally like to hold as reserves. Any reserves in excess of the target level are called excess reserves. Excess = Actual – Target How is Money Created in the Banking System?
  • We assume that all banks have the same target reserve ratio, unchangeable, that there is no cash drain from the banking system, & that the public holds all money in the form of deposits, not currency
  • Assuming that the target reservation is 10% for every $100 deposit the bank will hold $10 as reserves, making them lend out the extra $90 by creating a $90 deposit for the borrower. Banks will create money, as long as their actual reserves are different from their target reserves. Example: A $100 Cash Deposit Reserves = 100 Deposits = 100 Reserves = 100 Loans = 90 Deposits = 190 Reserves = 100 Loans = 171 Deposits = 271 Reserves = 100 Loans = 244 Deposits = 344... Reserves = 100 Loans = 900 Deposits = 1000
  • The bank will keep making loons until it is holding exactly 10% of the deposits as reserves. If the desired reserve ratio is 10%, then the level of deposits corresponding to a 10% desired reserve a shoe in the beginning point of $100 must be $1000. Changes in Deposits
  • The money supply equals currency plus deposits. If (v) is the target reserve ratio, a new deposit to the banking system will increase the total amount of the deposit by 1/v times the new deposit.
  • If v = 0.1 and the new deposit = $100… 100 x 1/0.1 = $1000.
  • With no cash drain from the banking system, a banking system with a target reserve ratio of ‘v’ can change the deposit by 1/v times any change in reserves. (Change in Deposits = Change in Reserves/v)
  • If commercial banks do not choose to lend excess reserves, there will not be a multiple expansion of deposits. If people decide to hold an amount of cash equal to a fixed fraction of their bank deposits, any multiple expansion of bank deposits will be accompanied by a cash drain.
  • If ‘c’ is the ratio of cash to deposits that people want to maintain, the final change in deposits will be: Change in Deposits = (New Cash Deposit)/(c+v) = 100 / (0.05+0.1) = $667, not 1000.
  • If the Central Bank wishes is to increase the money supply, it can start the process of deposit creation by purchasing a Government of Canada bond from an individual or firm on the public market. This individual will then deposit these funds in the banking system and this new deposit will lead to further increases in the money supply. What is the Money Supply?
  • The money supply is the total quantity of money that is in the economy at any time. There is more than one way to find the money supply, and each definition includes the amount of currency in circulation, plus some types of deposit liabilities of financial institutions.
  • A distinction lies between demand deposits, which earned little or no interest but were transferrable on demand as cheques, and savings or notice deposits which earned a higher interest rate but were not easily transferrable.

Chapter 12 - Money, Interest Rates, and Economic Activity What is Financial Wealth?

  • Money is assets that serve as a medium of exchange, paper money, coins, and bank deposits that can be transferred on demand by cheque or electronically.
  • Bones are all other forms of financial wealth which include interest-earning financial assets and claims on real capital. What is Present Value?
  • Present value is the value now of one or more payments or receipts made in the future, and it is also referred to as the discounted present value.
  • If R 1 is the amount we will receive one year from now and i is the annual interest rate, the present value of R 1 is PV = R 1 / (1+i). A higher interest rate leads to a lower present value.
  • Example: R 1 = $1000 and i = 3% | PV = 1000/1.03 = $970.
  • Scenario: suppose that a three-year bond promises to repay the face value of $1000 in three years and will also pay a 10% coupon payment of $100 at the end of each of the three years that the bond is held. How much is the Bond worth now if the market interest rate is 7%?
  • R 1 / (1+i) + R 1 / (1+i)^2 + R 1 / (1+i)^3 = Present Value | 100/1.07 + 100/1.07^2 + 1100/1.07^3 = 1078.73 = PV Present Value of Bonds
  • The present value of a bond is the most someone would be willing to pay now to own the bond’s future stream of payments, and the equilibrium market price of any bond is the present value of the income stream that it produces.
  • The present value of any given bond is negatively related to the market, and the interest rate and a bond’s equilibrium market price will be equal to its present value, which is the key relationship.
  • i UP - > PV DOWN - > P BOND DOWN |i DOWN - > PV UP - > P BOND UP
  • A bond is a financial investment for the purchaser. The cost of the investment is the price of the bond and the return on the investment is the sequence of future payments.
  • A lower bond price implies a higher rate of return on the bond or a higher bond yield. An increase in the market interest rate will reduce bond prices and increase bond yields; a reduction in the market interest rate will increase bond prices and reduce bond yields.
  • An increase in the riskiness of any bond leads to a decline in its expected present value and to a decline in the bond’s price; the lower bond price implies a higher bond yield. What is the Theory of Money Demand?
  • It is the amount of money that society collectively wants to hold at any time, the demand for money. It offers three reasons for firms and households to hold money. MD = MD (i-, Y+, P+)
  1. To carry out transactions, the transactions demand for $$.
  2. As a precaution to avoid problems with missing transactions, precautionary demand for $$.
  3. To speculate about how interest rates are likely to change in the future, speculative demand for $$.
  • The amount of money demanded is influenced by interest rates, levels of real GDP, and price levels.
  1. The demand for money is negatively related to the interest rate since the interest rate is the opportunity cost of holding money. i UP - > MD DOWN
  2. The demand for money is positively related to real GDP since real GDP represents the number of transactions that firms and households want to make. Y UP - > MD UP
  3. The demand for money is positively related to the price level since higher prices raise the dollar value of transactions meaning more money is needed to complete those transactions. P UP - > MD UP

The Money Demand Curve

  • A money demand curve has the interest rate on the vertical axis, and MD is the downward-sloping demand curve, drawn for a given level of real GDP and the price level.
  • Movements along the curve can only be caused by a change in the interest rate.
  • Suppose i UP - > Opportunity Cost of holding money UP - > quantity of Money Demanded DOWN
  • Shifts in the curve can only be caused by a change in P or Y
  • Suppose P UP - > need more money to buy same goods - > MD UP - > MD RIGHT How does Money affect Aggregate Demand?
  • When supply is added to the diagram to find the equilibrium interest rate. The money supply is a vertical line since it is independent of the interest rate. If the central bank increases reserves in the banking system, or if commercial banks lend out a larger fraction of the reserves then the money supply curve shifts to the right.
  • Monetary equilibrium is a situation in which the quantity of money demanded equals the quantity of money supplied.
  • If the interest rate is lower than the equilibrium interest rate, then households and firms will wish to hold more of their assets in the form of money, making excess demand for money. They will sell bonds in order to obtain more money, however, their actions will be enough to reduce bond prices overall and raise interest rates.
  • Excess Demand for Money - > sell bonds - > price of bonds DOWN - > interest rate UP until equilibrium Monetary Transmission Mechanisms
  • The monetary transmission mechanism refers to the channel by which a change in the demand for or supply of money, leads to a shift of the aggregate demand curve in four stages.
  1. Bank of Canada buys government of Canada bonds on the open market and pays with currency which is deposited, and then commercial banks increase their lending by creating deposits. MS UP
  2. Changes in the demand for money or the supply of money cause a change in the equilibrium interest rate in the short run. MS UP - > i DOWN. Excess MS - > buy bonds - > price of bonds IP - > i DOWN
  3. The change in the equilibrium interest-rate leads to a change in the desired investment, desired consumption, and net exports. i DOWN - > cost of borrowing DOWN - > durable goods consumption UP
  • Investment UP | i DOWN - > domestic assets less attractive - > CAD depreciates - > Net Exports UP.

  1. The change in desired aggregate expenditure leads to a shift in the AD curve, and to short run changes in real GDP in the price level. C UP I UP NX UP - > AE UP - > AD RIGHT - > P UP and Y UP
  • The lower interest rate has three effects: firms increase their desired investment expenditure due to a fall in the opportunity cost of borrowing, households increase their desired consumption expenditure on durable goods due to a fall in the cost of obtaining credit, the lower interest rate causes the domestic currency to depreciate, leading to a rise in net exports.
  • Decreases in the money supply cause the interest rate to rise, leading to a fall in consumption investment and net exports, so desired AE falls, and the AD curve shifts left and the real GDP and the price level fall. MS DOWN - > i UP - > C, I, NX DOWN - > AE DOWN - > AD LEFT - > P and Y DOWN Another Reason for the AD Curve to be Downward-Sloping
  • A rise in the price level raises the money value of transactions and leads to an increase in the demand for money; for a given supply of money, the increase in money demand raises the equilibrium interest rate which reduces desired investment expenditure. P UP, MD UP, i UP, I DOWN AE DOWN Y DOWN

Chapter 13- Monetary Policy in Canada How does the Bank of Canada Implement Monetary Policies?

  • Any central bank has two alternative approaches for implementing its monetary policy: it can target the money supply or it can target the interest rate. But for a given money demand curve, it cannot target both.
  • Targeting the Money Supply = MS UP - > i DOWN - > C, I, NX UP - > AE UP - > AD. RIGHT - > Y, P UP
  • Targeting the Interest Rate = i DOWN - > C, I, NX UP - > AE UP - > AD. RIGHT - > Y, P UP What are the Advantages of Targeting the Interest Rate?
  • The Bank of Canada is able to control a particular interest rate, the overnight interest rate, while the money supply is much harder to control. (Controlled by commercial banks)
  • Uncertainty about the slope and position of the money demand curve does not prevent the Bank of Canada from establishing its desired interest rate.
  • The Bank of Canada can easily communicate its interest-rate policy to the public.
  • This is because a bigger change in MS is needed for the same change in the interest rate. What is the Overnight Interest Rate?
  • The overnight interest rate is the interest rate that commercial banks charge one another for overnight loans.
  • By influencing the overnight interest rate, the Bank of Canada also influences the longer-term interest rates that are more relevant for determining aggregate consumption and investment expenditure.
  • The Bank establishes a target for the overnight interest rate and announces this target 8 times a year. What is the Bank Rate?
  • The Bank announces its target for the overnight rate (4.5%) with the bank rate, which is the interest rate the Bank of Canada charges commercial banks for loans, which is 0.25 percentage points (25 basis points) above the target rate. The Bank promises to lend at this bank rate any amount that commercial banks want to borrow. Bank Rate = 4.75%
  • The Bank offers to borrow (accept deposits) in unlimited amounts from commercial banks and pay them an interest rate of 0.25 percentage points below the target. The actual overnight interest rate stays within the 0.5-percentage-point range around the target rate. Deposit Rate = 4.25% Changes in Overnight-Rate Targets
  • When the Bank changes its target for the overnight rate, the change in the actual overnight rate happens almost instantly, and changes in other market interest rates also happen within a day or two. As the rates adjust, firms and households begin to adjust their borrowing behavior. (i DOWN, MS UP)
  • Commercial banks find themselves in need of more cash reserves with which to make loans. Banks can sell some of their government securities to the Bank of Canada in exchange for cash (or electronic reserves) and then use this cash to extend new loans.
  • The purchase or sale of government securities on the open market by the central bank is called open- market operations. The Bank of Canada changes the amount of currency in circulation.
  • The money supply is endogenous; it is not directly controlled by the Bank of Canada, instead, it is determined by the economic decisions of households, firms, and commercial banks.
  • The Bank of Canada is passive in its decisions regarding the money supply; it conducts its open-market operations only to accommodate the changing demand for currency coming from the commercial bank
  • If the Bank of Canada wants to stimulate aggregate demand (Raise AD-> RIGHT), it will reduce its target for the overnight interest rate. Reducing the interest rate is an expansionary monetary policy because it leads to an expansion (increase) of aggregate demand.
  • If the Bank of Canada wants to reduce aggregate demand (REDUCE GDP), it will raise its target for the overnight interest rate. Raising the interest rate is a contractionary monetary policy because it leads to a contraction (DECREASE) of aggregate demand.
  1. The Bank of Canada sets its target for the overnight interest rate
  2. Overnight interest rates and longer-term market interest rates are determined
  3. Interest rates determine consumption and investment (the cost of borrowing goes down)
  4. The exchange rate determines net exports
  5. AD = AS will determine the equilibrium P and Y Why does the Bank of Canada target Inflation?
  • Central banks’ focus on inflation comes from 2 observations regarding macroeconomic relationships:
  1. High and uncertain inflation leads to arbitrary income redistributions (from lenders to borrowers) and hampers the ability of the price system both to allocate resources efficiently and to produce suitable rates of economic growth.
  2. Most economists and central banks accept that monetary policy is the most important determinant of a country’s long-run rate of inflation.
  • The Bank of Canada’s target range for inflation is 1-3% per year with an emphasis on the 2% midpoint. How does the policy keep Real GDP close to Y*?
  • Persistent output gaps generally create pressure for the rate of inflation to change, so the Bank of Canada designs its policy to keep real GDP close to potential output.
  • Positive shocks to the economy that create an inflationary gap and threaten to increase the rate of inflation will be met by contractionary monetary policy.
  • Negative shocks to the economy create a recessionary gap, met with expansionary monetary policy.
  • Inflation targets act to stabilize GDP but are not as “automatic” a stabilizer as the fiscal stabilizers built into the tax-and-transfer system. What are the Complications of Inflation Targeting?
  1. Food and energy prices are volatile, so they are often unrelated to the level of the output gap in Canada. The Bank of Canada closely monitors the rate of “core” inflation even though its formal target of 2% applies to the rate of CPI inflation since changes in core inflation are a better indicator of domestic inflationary pressures than changes in CPI inflation.
  2. Changes in International trade and the exchange rate can have several different causes, so may or may not require a monetary policy response. What are Long and Variable Lags?
  • Monetary policy operates with a time lag that is long and variable for two reasons: Changes in spending take time, and the multiplier process takes time.
  • The fact that monetary-policy actions taken today will not affect output and inflation until one to two years in the future means that the Bank of Canada must design its policy for what is expected to occur in the future rather than what has already been observed.
  • The long time lags in the effectiveness of monetary policy increase the difficulty of stabilizing the economy, and monetary policy may even have a destabilizing effect.
  • Time lags in monetary policy require that decisions regarding a loosening or tightening of monetary policy be forward-looking