ECON 104 Lecture 8: Aggregate Expenditure Model

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tealgoat431

17 Jan 2018

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If there"s (cid:373)ea(cid:374)t to (cid:271)e profit struggles, the(cid:455) de(cid:272)rease their i(cid:374)(cid:448)est(cid:373)e(cid:374)t. Marginal propensity to consume: slope of ae function = mpc (rise/run, assumed that mpc always takes value <1, marginal propensity to save (mps, mpc + mps = 1. 0. Multiplier effect: small shock leads to larger change, total y = autonomous effect + induced effect, autonomous is the external shock, multiplier works both ways (positive and negative shocks, multiplier calculation is the total change in y/total shock. Induced effect is all the additional rounds of spending that the shock creates. Aggregate supply and demand: explains all economic fluctuations to y, uer and pl, whole purpose of these graphs is to show what happens in the long run. This makes people wealthier because price dropped so they buy more therefore total real gdp increases (inc. in consumption) positive shock to ae. Interest rate effect: works through market of loanable funds, price decreases but consumption is held constant.

Related Questions

1. What does the investment component of GDP measure?

a. spending by households on goods and services

b. spending by government agencies on goods and services

c. spending on goods to be used in future production

d. spending on domestically produced goods by foreign buyers

2. A good produced in the current time period but put into a firm's inventory instead of being sold

a. is only included as a part of consumption in future GDP when it is sold.

b. is counted as consumption in the current GDP since it was produced in the current time period.

c. is excluded from the current GDP.

d. is considered unsold inventory and counted as a part of the investment in current GDP.

burgundycrow837

1. The multiplier helps explain

A. why a decrease in taxes causes real Gross Domestic Product (GDP) to fall by more than the amount of the decrease in taxes.

B. why a fall in investment cause real Gross Domestic Product (GDP) to rise by more than the amount of the decrease in investment.

C. why a rise in government expenditures causes real Gross Domestic Product (GDP) to rise by more than the amount of the increase in government spending.

D. why an increase in disposable income causes real Gross Domestic Product (GDP) to rise by less than the amount of the increase in disposable income.

2. If the marginal propensity to save (MPS) increases, the multiplier

A. decreases.

B. can either increase or decrease, depending on what happens to the marginal propensity to consume (MPC).

C. stays the same.

D. increases.

QUESTION 60

The investment function will shift when there is a change in

		A. the opportunity cost of retained earnings.
		B. firms' profit expectations.
		C. the cost of borrowing.
		D. the interest rate.

1.43 points

QUESTION 61

In the Keynesian model, whenever planned saving exceeds planned investment,

		A. there will be unplanned inventory accumulation.
		B. real GDP will not be influenced.
		C. the interest rate will remain unchanged.
		D. there will be unplanned inventory depletion.

1.43 points

QUESTION 62

In the Keynesian model, whenever planned saving is less than planned investment,

		A. there will be unplanned inventory depletion.
		B. the interest rate will remain unchanged.
		C. there will be unplanned inventory accumulation.
		D. real GDP will not be influenced.

1.43 points

QUESTION 63

Government purchases

		A. are determined by the political process.
		B. are determined by the public.
		C. are influenced by interest rates.
		D. are determined by suppliers.

1.43 points

QUESTION 64

If, at some level of output, total planned real expenditures are less than real Gross Domestic Product (GDP),

		A. real GDP will either fall or remain unchanged, depending on the MPC.
		B. real GDP will rise.
		C. real GDP remains unchanged.
		D. unplanned inventories will increase and real GDP will fall.

1.43 points

QUESTION 65

When the economy is operating at the equilibrium level of GDP, we know that

		A. total planned real expenditures equal real GDP.
		B. real net exports equal inventory changes.
		C. planned real investment spending equals real net exports of zero.
		D. total planned real consumption expenditures equal real GDP.

1.43 points

QUESTION 66

One divided by the marginal propensity to save (MPS) is the formula for

		A. the inverse of the multiplier.
		B. the multiplier.
		C. one minus the multiplier.
		D. autonomous consumption.

QUESTION 67

Thinking like an economist would, which is true of investment?

		A. Investment represents spending on capital goods.
		B. Investment is a stock concept.
		C. Investment is putting money into stocks and bonds.
		D. It is the portion of disposable income that is not used for consumption or saving.

QUESTION 68

Other things being equal, if input prices rise in a country, then there would be

		A. cost-push inflation.
		B. demand-pull inflation.
		C. cost-pull deflation.
		D. more production and a lower price level.

QUESTION 69

In the short run, if the price level rises, then the overall economy can temporarily produce beyond its nominal capacity. One reason for this is that

		A. existing capital equipment can be used more intensively.
		B. wage rates rise almost simultaneously with the price level.
		C. the unemployment rate usually rises dramatically along with the price level.
		D. workers can be switched from counted to uncounted production.

fuchsiaclam197

Dalum Papir A/S is almost halfway through its second century as a Danish paper manufacturer. Years ago, the firm was one of many paper companies, but now it constitutes one- half of Denmark's two-firm paper industry. The company utilizes highly energy-efficient techniques to manufacture glossy paper from recycled materials for magazines. Dalum Papir has had little choice but to conserve energy. Government taxation has boosted energy prices more than 45 percent above the U.S. level. Also, like other Danish firms, Dalum Papir must meet government-mandated standards for energy conservation.

Ever since the 1970s, when a worldwide spike in oil prices set off a prolonged recession, Denmark's government has sought to shield the nation's economy from future aggregate supply shocks induced by jumps in energy prices. Toward that end, it has enacted high energy taxes and tough regulatory conservation measures. A consequence is that Danish oil consumption per $1 million of real GDP has declined by more than 30 percent - to 120 tons o oil per $1 million of real GDP - over the last 30 years. Indeed, Denmark's total oil consumption has remained unchanged since the late 1970s. Thus, consistent with the government's intent, whenever oil prices suddenly shoot up, Denmark's economy tends to experience smaller aggregate supply shocks than it did in years past.

As the experience of Dalum Papir and the dwindling Danish paper, industry illustrates, however, the government's quest for aggregate supply stability has come at the cost of growth in the production of goods and services. Since the late 1970s, Denmark's real GDP has doubled, whereas U.S. real GDP has quadrupled. During that period, total U.S. oil consumption has increased by more than 40 percent, yet because U.S. real GDP has increased fourfold, U.S. oil consumption per $1 million of real GDP has fallen by more than 25 percent - almost as much as the percentage decline in Danish oil consumption per $1 million in real GDP. Thus, although the Danish economy is less susceptible than the U.S. economy to aggregate supply shocks, Denmark's aggregate supply is growing at about half the pace at which the U.S. aggregate supply is expanding.

1. Why do unexpected variations in energy prices generate aggregate supply shocks, which sudden changes in total planned expenditures do not?

2. Other things being equal, why might we expect the Danish price level to be more stable over time than the U.S. price level?

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ECON 104 Lecture 8: Aggregate Expenditure Model

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