ECON 105 Lecture Notes - Lecture 12: Loanable Funds, Consumption Smoothing, Demand Curve

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ultramarinetortoise293

25 Oct 2016

School

Simon Fraser University

Department

Economics

Course

ECON 105

Professor

Junjie Liu

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ECON 105 Full Course Notes

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To keep things simple, we assume that the economy has only one nancial market, called the market for loanable funds. Comes rom people who have extra income and they want to save and lend out. What do households do with their savings: purchase of bonds or stocks, mutual funds, saving or checking accounts in banks, saving is the source of supply of loanable funds. Comes from households and rms who wish to borrow to make investments. Who demands loanable funds: rms borrow fund they need to pay for equipment, machines, factories, households borrow to buy homes, investment is the source of demand for loanable funds. At equilibrium, quantity demanded is equal to quantity supplied. The interest rate is the price of the loan, which represents the amount the borrows pay for loans and the amount lenders receive: if the market is not at equilibrium, the interest rate will adjust.

Related Questions

Three students have each saved $\$$1,000. Each has an investment opportunity in which he or she can invest up to $\$$2,000. Here are the rates of return on the students' investment projects:

Harry $\quad$ 5 percent

Ron $\quad$ 8 percent

Hermione $\quad$ 20 percent

a. If borrowing and lending are prohibited, so each student uses only personal savings to finance his or her own investment project, how much will each student have a year later when the project pays its return?

b. Now suppose their school opens up a market for loanable funds in which students can borrow and
lend among themselves at an interest rate $r$. What would determine whether a student would choose to be a borrower or lender in this market?

c. Among these three students, what would be the quantity of loanable funds supplied and quantity
demanded at an interest rate of 7 percent? At 10 percent?

d. At what interest rate would the loanable funds market among these three students be in equilibrium? At this interest rate, which student(s) would borrow and which student(s) would lend?

e. At the equilibrium interest rate, how much does each student have a year later after the investment projects pay their return and loans have been repaid? Compare your answers to those you gave in part (a). Who benefits from the existence of the loanable funds market$-$the borrowers or the lenders? Is anyone worse off?

silverwolf680

1. Why Niall Ferguson thought that the expansionary fiscal policy (or government deficit) could produce crowding-out effect? You can explain by using the IS-LM model or you can use the logic of loanable funds theory.

Niall Ferguson believed that expansionary fiscal policy could produce a crowding-out effect. Ferguson believed that if the government tried to increase demand during the crisis it would cause the real interest rate to increase. He theorized that if the government tried to boost the economy through deficit spending it would cause the interest rate to rise, which in turn would crowd-out investors and consumers. The interest in the deficit would lead to an increase in the demand for loanable funds, which would lead to an increase in interest rates. Ferguson stated "The lesson of economic growth is very clear. Economic growth does not come from state-led infrastructure investment. It comes from technological innovation, and gains in productivity, and these things come from private sector, not from the state."

2. Why Paul Krugman thinks that Niall Ferguson was wrong and thought that government deficit could not produce a crowding-out effect? In other words, please explain Krugman's Liquidity trap .

Paul Krugman disagreed with Ferguson and believed that the government deficit could not produce a crowding out effect. Krugman's liquidity trap: Private demand is so low that even if the short-term interest rate is 0% spending is less that what is needed for full employment. Normal monetary policy of the central bank purchasing short-term debts with new money is ineffective. Krugman argues that a major issue during the crisis was people wanting to save money combined with the private sector being far less likely to invest. He referred to this a "savings glut". It was argued that the federal reserve was playing the part that the private banking system through buying private securities and the federal government was playing the roll that business wasn't by engaging in investment. Due to the liquidity trap excess demand for savings is not going to drive interest rates up. Krugman stated " Government borrowing gives some of those excess saving a place to go and in the process expands overall demand, and hence GDP. It does not crowd out private spending, at least not until the excess supply of savings has been sopped up, which is the same thing as saying not until the economy has escaped from the liquidity trap."

3. In the discussion, other discussants such as George Soros and Robin Wells pointed out some interesting issues. Please provide at least one thing that you agree and one thing that you disagree. Discuss in details why you think so.

I agree with Soros view that the publics view of the financial markets has been forever changed. " Financial markets namely that they tend toward equilibrium, and that equilibrium is disturbed by extraneous forces, outside shocks. But the finical system collapsed of its own weight." I feel like this is a situation in which it takes a very long time to build trust, but that trust can be lost instantly. The crash has challenged the felling of security that people once felt in the banking system. The idea of the market regulating itself is fading, it wasn't until the government stepped that people felt reassured in the banking system. I believe this will lead to a period of government regulation that wouldn't have arose without this change in view. I disagree with robin Wells' view that the US needs to shift towards protectionism. I believe that free trade is good for everyone as long as there is a comparative advantage. If the US moves toward protections as a result of the deficit it will slow economic growth and place us at a disadvantage compared to countries with free trade. Not to mention consumers in the US will be placed with the burden of higher prices on goods.

Please make comments to the discussion I provided above(at least 300 words). And you can start with "I agree with you on some points... But I disagree with you on some points".

1. Which of the following both increase the money supply?

an increase in the discount rate and an increase in the interest rate on reserves
an increase in the discount rate and a decrease in the interest rate on reserves
a decrease in the discount rate and an increase in the interest rate on reserves
a decrease in the discount rate and a decrease in the interest rate on reserves

2. In the U.S., the average adult holds about $3,700 in

currency.
wealth.
M1.
M2.

3. The measure of the money stock called M1 includes

wealth held by people in their checking accounts.
wealth held by people in their savings accounts.
wealth held by people in money market mutual funds.
everything that is included in M2 plus some additional items

4. When the Fed decreases the discount rate, banks will

5. Reserve requirements are regulations concerning

the amount banks are allowed to borrow from the Fed.
the amount of reserves banks must hold against deposits.
reserves banks must hold based on the number and type of loans they make.
the interest rate at which banks can borrow from the Fed.

6. When we say that trade is roundabout we mean that

people sometimes trade goods for goods.
trades require a double coincidence of wants.
currency is accepted primarily to make further trades.
people must spend time searching for the products they wish to purchase.

7. Values of Assets

Asset	Amount in $Billions
Small-time deposits	780
Large time deposits	1,700
Demand deposits	450
Other checkable deposits	370
Savings deposits	4950
Traveller's checks	5
Money market mutual funds	740
Currency	880
Miscellaneous categories of M2	50

Refer to Value of Assets. What is the value of M1 in billions of dollars?

1705
2485
6295
7075

8. In 1991, the Federal Reserve lowered the reserve requirement from 12 per cent to 10 per cent. Other things the same this should have

increased both the money multiplier and the money supply.
decreased both the money multiplier and the money supply.
increased the money multiplier and decreased the money supply.
decreased the money multiplier and increased the money supply.

9. Consider four survivors on an island.

Rupert	has machete	wants fishing spear
Amber	has cooking pot	wants fishing spear
Rob	has fishing spear	wants machete
Tom	has cooking pot	wants machete

Which of the following pairs of survivors has a double-coincidence of wants?

Rupert with Amber, and Rob with Tom
Amber with Tom
Rupert with Rob
None of the above is correct.

10. Economists use the term money to refer to

all wealth.
all assets, including real assets and financial assets.
all financial assets, but not real assets.
those types of wealth that are regularly accepted by sellers in exchange for goods and services.

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ECON 105 Lecture Notes - Lecture 12: Loanable Funds, Consumption Smoothing, Demand Curve

ECON 105 Full Course Notes

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