ECON 1BB3 Lecture Notes - Lecture 24: Aggregate Supply, Aggregate Demand, Liquidity Preference

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29 Nov 2016

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ECON 1BB3 Full Course Notes

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Y = c + i + g + nx. Ad: y = c + i + g + nx. The ad curve has a negative slope for three reasons: P: wealth effect, interest rate effect, real exchange rate effect. Y = c _i + g + nx: interest rate effect. 15 - liquidity preference theory) money pays no interest, bonds pay interest, need money only to buy stuff, int. rate = opp. cost of holding money. P decrease, people buy same quantity of stuff => need less money (m decreases, shifts left), y = c(increase) + i + g + nx y increase: real exchange rate effect. P decreases, (ep decreases/ p*) decreases, cdn gets cheaper relative to foreign gds exports increase, imports decrease => nx increase y increase. Anything other than p that affects c, i, g, or nx will cause the ad curve to shift.

Related Questions

The demand for money
A) d and e are correct
B) all of the following are correct
C) decreases as the average selling price of a unit of outputincreases
D) increases as GDP increases
E) is increased by credit card usage
2. The higher the interest rate, the more of their wealth peoplewill hold as money.
A) True
B) False
3. The money demand curve slopes
A) downward because the cost of holding money decreases as theinterest rate decreases
B) downward because the cost of holding money increases as theinterest rate decreases
C) upward because people demand more money as GDP increases
D) upward because people demand more money as GDP decreases
E) downward because people demand more money as the price levelincreases
4. Which of the following, other things constant, will shift themoney demand curve to the left?
A) an increase in the interest rate
B) a decrease in the interest rate
C) a decrease in real GDP
D) an increase in real GDP
E) an increase in the price level
5. An increase in the money supply will
A) increase the demand for money at each interest rate
B) decrease the demand for money at each interest rate
C) lead people to try to exchange money for interest-bearingassets
D) lead people to try to exchange interest-bearing assets formoney
E) increase the interest rate
6. When an increase in the money supply reduces the interest rate,investment and nominal GDP increase.
A) True
B) False
7. In the short run, a decrease in the money supply will cause adecrease in Gross Domestic Product and a decrease in the pricelevel.
A) True
B) False
8. The demand curve for investment is graphed with __________ onthe vertical axis and __________ on the horizontal axis.
A) the interest rate; investment
B) investment; the interest rate
C) the price level; investment
D) investment; the price level
E) real GDP; investment
9. As the interest rate increases,
A) the demand for investment curve shifts to the right
B) the demand for investment curve shifts to the left
C) there is a movement downward along the demand for investmentcurve
D) there is a movement upward along the demand for investmentcurve
E) GDP increases
10. If the economy experiences a contractionary gap and the Fedstimulates the economy, then:
A) The money supply is increasing because the Fed prints moremoney
B) The money supply is decreasing because the Fed hoardsmoney
C) The money supply is increasing because the Fed makes open-marketpurchases
D) The money supply is decreasing because the Fed makes open-marketsales
E) There is no change in the money supply because the Fed cannotinfluence the money supply
11. If the Fed decreases the money supply, GDP
A) increases because the resulting increase in the interest rateleads to a decrease in investment
B) increases because the resulting decrease in the interest rateleads to an increase in investment
C) decreases because the resulting increase in the interest rateleads to a decrease in investment
D) decreases because the resulting increase in the interest rateleads to an increase in investment
E) decreases because the resulting decrease in the interest rateleads to an increase in investment
12. An increase in the money supply can increase the price level,real GDP, or both, but it is impossible to tell exactly what willhappen without knowing the slope of the aggregate supplycurve.
A) True
B) False
13. If the economy experiences an expansionary gap and the Fedsells US government securities in the open-market, then:
A) Money supply increases, investment increases, aggregate demandincreases
B) Money supply increases, the interest rate increases, and theaggregate demand increases
C) Money supply decreases, the interest rate decreases, and theaggregate demand falls
D) Money supply decreases, the investment decreases, and theaggregate demand decreases
E) Interest rate falls, investment falls, aggregate demandincreases
14. If the money supply equals $1,000 and nominal GDP equals$3,000, then V
A) equals 1/3
B) equals 3
C) equals 3 million
D) cannot be determined since we do not know anything aboutprices
E) cannot be determined since we do not know anything about realGDP
15. If the money supply is increasing at a constant 8 percent,velocity is constant, real GDP is increasing at 5 percent, and theinflation rate is 3 percent, which of the following is true?
A) The growth rate of GDP is too low to be maintained.
B) The inflation rate is too low to be maintained.
C) Velocity is too low to be maintained.
D) The money supply growth rate is too low to be maintained.
E) This situation can continue indefinitely.
16. If real output and velocity are stable and predictable, thenthe equation of exchange can be used to derive a simplerelationship between
A) the money supply and the price level
B) the money supply and the interest rate
C) the money supply and the foreign exchange rate
D) velocity and real GDP
E) velocity and nominal GDP
17. For the quantity theory of money to yield usefulpredictions,
A) fiscal policy must be ineffective in altering aggregatedemand
B) fiscal policy must be effective in altering aggregatedemand
C) the economy must be operating at the potential level of realGross Domestic Product
D) velocity must be stable or predictable
E) velocity must be unstable
18. A rising rate of inflation
A) makes people more willing to hold money as an asset
B) reduces the usefulness of money as a store of value and thusincreases the velocity of money
C) increases the usefulness of money as a medium of exchange andthus reduces the velocity of money
D) is usually preceded by a reduction in the money supply
E) does not, apparently, have any effect on the velocity ofmoney
19. There is considerable disagreement about whether the Fedshould
A) engage in open market operations
B) have the power to set reserve requirements
C) reduce the money supply when the economy is growing
D) allow banks to invest in the stock market
E) attempt to control interest rates or should instead attempt tocontrol the money supply
20. For interest rates to remain stable during economic expansions,the growth rate of the money supply should
A) exceed the growth in the demand for money
B) just match the growth in the demand for money
C) be less than the growth in the demand for money
D) be zero
E) just match the growth in nominal GDP

salmonpug424

Choose the correct answer from the brackets:

A)The demand for money is mainly influenced by three variables: r (the short-term interest rate), Y (real GDP), and P (the aggregate Price level). Suppose r rises, but Y and P are unchanged. What happens to the quantity of money demanded?

r is both the opportunity cost of holding money and the reward for holding bonds. Thus, an increase in r causes people to want to hold (more/less ) of their wealth in the form of money and ( more/less) in the form of bonds to take advantage of the higher interest rate.

Suppose real income (Y) rises while the quantity of money in the economy stays the same. What happens to money demand?

The supply of money does not automatically rise when the production of real goods and services (Y) rises. However, the collective demand for money by firms and households does rise. To get this money firms and households attempt to (buy more/ sell some of their /more /less bonds).

Thus, an increase in Y causes people to want to hold (buy more /sell some of their / more /less) of their wealth in the form of money and (buy more / sell some of their / more / less ) in the form of bonds.

C)Suppose the price level (P) rises, but Y and r are unchanged. What happens to money demand?

If Y is unchanged, people will want to buy the same amount of goods and services as before. However, since P is higher, they will need (more / less) money to do so.

Hence, an increase in P causes people to want to hold (more / less) of their wealth in the form of money and (more / less) in the form of bonds.

purplesardine140

2. Assume that householdsâ consumption function is given by C(Y â T) = 50 + 0.75(Y â T), that firmsâ investment function is I(r) = 150 â 10r, government spending is G = 150, and the tax bill T = 200.

(a) What is the Marginal Propensity to Consume (âMPCâ)?

(b) What is the equilibrium level of real GDP, in the goods market, if the real interest rate is 5%? (Plug in r = 5 for 5%, rather than 0.05 This is an assumption about the way we scale the coefficients in the investment function.)

(c) Solve for the equation of the IS Curve (âInvestment-Savingsâ). How will this equation change if government spending increases to 200? The money supply is MS = 3000 and the price level is P = 4. Money/liquidity demand is given by Md/P = L(r, Y ) = Y â 50r.

(d) Solve for the equation of the LM Curve (âLiquidity-Moneyâ).

(e) Based on your answers to the previous two questions, what are the equilibrium levels of the real interest rate and real GDP? (G is back to 150.)

(f) Assume now that P is unknown. Solve for the equation of the Aggregate Demand curve (âADâ)

ECON 1BB3 Lecture Notes - Lecture 24: Aggregate Supply, Aggregate Demand, Liquidity Preference

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