ECON 2010 Chapter : Chapter 13 Notes

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15 Mar 2019

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Aggregate demand: aggregate demand & aggregate supply model a model that explains short-run fluctuations in real. Gdp & the price level: why is the aggregate demand curve downward sloping, gdp has four components: consumption (c), investment (i), government purchases (g), & net exports (nx). Recall, letting y = gdp, then y=c+i+g+nx: the wealth effect: how a change in the price level affects consumption, the phenomenon of price level fluctuations affecting consumption is called the wealth effect. Lower prices increases perceived wealth & increases consumption. 2: if foreign countries buy fewer u. s. goods or if the us buys more foreign goods, net exports will fall. The aggregate demand curve will shift to the left: government can increase or decrease spending (g) &/or taxes (t), increasing spending or decreasing taxes will increase aggregate demand (ad). More money is being spent (g) or is available to be spent (less t).

Related Questions

In the money market, money supply is determined by the central bank, such as the Fed in the U.S. Because of this, money supply curve is usually vertical in the short run, while the money demand curve is downward sloping. The quantity demanded of money has an inverse relationship with the interest rate, but a direct relationship with both the price level and real GDP. Therefore, when the general price level increases, what will most likely happen?

		A. The money demand curve will shift to the right.
		B. The money demand curve will shift to the left.
		C. Both the interest rate and investment will rise.
		D. Only A and C.
		E. Only B and C.

Suppose workers become pessimistic about their future employment, which causes them to save more and spend less. If the economy is in the Keynesian range of the aggregate supply curve, then

		A. real GDP will fall and the price level will rise.
		B. real GDP will rise and the price level will fall.
		C. only the real GDP will fall.
		D. only the price level will fall.
		E. both real GDP and the price level will fall.

Which of the following will shift the aggregate demand curve to the left?

		A. The federal government increases spending for highways and bridges.
		B. Consumers expect an economic downturn.
		C. The federal government increases income taxes.
		D. Only A and C.
		E. Only B and C.

Which of the following will shift the aggregate supply curve to the left?

		A. All workers agree to a reduction in wages.
		B. The federal government increases the gasoline taxes.
		C. An improvement in technology raises labor productivity.
		D. Only A and C.
		E. Only B and C

There are also two kinds of deflation, the demand-pull deflation and cost-push deflation. Then which of the following is most likely to be true?

		A. An increase in AD will cause the demand-pull deflation.
		B. An increase in AS (or SRAS) will cause a cost-push deflation.
		C. Economists worry about the demand-pull deflation more than the cost-push deflation.
		D. Only A and C.
		E. Only B and C.

The short-run aggregate supply curve (SRAS) can be written as follows: Y = Yf + b (p - pe), where Y = real GDP, Yf = full-employment real GDP, p = price level, pe = expected price level, and b is a positive coefficient. The SRAS can be re-written as p = pe - (1/b)(Yf) + (1/b)(Y). Then which of the following is true?

		A. An increase in pe will cause a rightward shift of the SRAS curve.
		B. An increase in pe will cause a leftward shift of the SRAS curve.
		C. An increase in Yf will cause a leftward shift of the SRAS curve.
		D. Only A and C.
		E. Only B and C.

lavenderoyster638

In the AD-AS model, stagflation does not persist, because the working of the self-correcting mechanism of the economy _____ the level of output and _____ the price level until the economy eventually returns to a long-run equilibrium state, where actual output _____ potential output.

	decreases; decreases; falls short of
	increases; decreases; equals
	decreases; increases; exceeds
	decreases; increases; equals
	increases; decreases; exceeds

The LRAS curve is drawn as a vertical line at potential output (Y*) to indicate that

	Y* is independent of the price level and that actual output Y > Y* in the long run
	Y* equals actual output (Y) in the long run
	Y* is independent of the price level and that actual output Y = Y* in the long run
	Y* is independent of the price level
	Y* is independent of the price level and that actual output Y < Y* in the long run

Stagflation arises in the context of the AD-AS model when some external factor causes

	the LRAS curve to shift to the right
	the AD curve to shift leftwards
	the SRAS curve to shift downwards
	the SRAS curve to shift upwards
	the AD curve to shift rightwards

If the SRAS curve is positively sloped, then a decrease in the demand for Canadian-made goods in Europe will lead to _____ in the price level, in the short run.

	either an increase or a decrease
	no change
	an increase
	a decrease
	an initial increase, and then a decrease

Which of the following will shift the aggregate demand curve to the right?

	Consumers become pessimistic about the future
	A new technology is developed that will increase profits
	Income taxes are raised
	Foreign economies fall into recession, reducing their demand for domestic exports
	The government reduces purchases to balance the budget

Suppose a stock market crash decreases the stock of household wealth and therefore causes autonomous consumption to fall. Which of the following is the likely result?

	A leftward shift the AD curve
	There will be no movement of the AD curve
	A movement down the AD curve
	A movement up the AD curve
	A rightward of the shift the AD curve

An economy is characterized by the AD equation P = 200 ? 0.02Y, SRAS equation P = 100 and LRAS equation Y* = 5000. In the absence of any change in policy or exogenous shocks, this economy will achieve a long-run price level of

	100
	110
	120
	90
	105

The AD-AS model depicts a self-correcting economy. This means that the price level in the model adjusts automatically in response to a(n) _____ gap, so as to eliminate the _____ gap in the long run, without requiring any help from government policies.

	recessionary; recessionary
	recessionary; expansionary
	expansionary; expansionary
	output; output
	expansionary; recessionary

The aggregate demand curve shows

	the amount of planned aggregate expenditure (and output) at the current price level
	the amount of planned aggregate expenditure (and output) at an average price level
	the amount of planned aggregate expenditure (and output) at a constant price level
	the amount of planned aggregate expenditure (and output) at various price levels
	the amount of planned aggregate expenditure (and output) at last year's price level

Consider an economy initially at long-run equilibrium with output (Y) equal to potential output (Y*). If the SRAS is positively sloped, then a shift to the right of the AD curve will lead to _____ in the price level, in the short run. In the long run, the SRAS curve will shift to the _____ and the equilibrium will be at __________.

	an increase; left; Y = Y*
	a decrease; right; Y > Y*
	an increase; right; Y = Y*
	a decrease; left; Y > Y*
	no change; left; Y = Y*

10.

The long-run aggregate supply curve (LRAS) is Y = Yf, which depends on the amounts of resources and the level of technology innovation. If a country has more resources and better technology, which of the following is true?

		A. The LRAS curve will shift to the right.
		B. The SRAS will shift to the right.
		C. The SRAS will shift to the left.
		D. Only A and B.
		E. Only A and C.

11.

Suppose the wage rates of workers are based on the expected price level. If there is an unexpected increase in AD, it will cause the actual price level to increase. Then workers should raise their expected price level and negotiate a higher wage rate. Then which of the following is most likely to be true when the expected price increases?

		A. The SRAS curve will shift rightward.
		B. The SRAS curve will shift leftward.
		C. The LRAS curve will shift leftward.
		D. Only A and C.
		E. Only B and C.

12.

Suppose the economy is in the long-run equilibrium, i.e., Y = Yf, and there is an unexpected decrease in AD. Assume that Yf is fixed, then which of the following is most likely to be true?

		A. The SRAS curve will shift to the right toward the new long-run equilibrium.
		B. The SRAS curve will shift to the left toward the new long-run equilibrium.
		C. In the new long-run equilibrium, price level will be higher.
		D. Only A and C.
		E. Only B and C.

13.

The short-run (SR) equilibrium is the intersection between AD and SRAS, and long-run (LR) equilibrium is the intersection between AD and LRAS. Every LR equilibrium is a SR equilibrium, but a SR equilibrium is not always the LR equilibrium. If an economy is operating at a SR equilibrium where Y > Yf, which of the following will occur in the process toward the new LR equilibrium when the economy corrects itself?

		A. Price increases.
		B. Real GDP decreases.
		C. Unemployment rate falls.
		D. Only A and B.
		E. Only B and C.

14.

From the Keynesians, Y = C + I + G + NX can be transformed into a theoretical model. In particular, assume that the consumption C = A + mpc (Y-T), where A is a constant, mpc is the marginal propensity to consume, Y is national income and T is income taxes. Suppose in the goods market equilibrium, aggregate expenditure = national income such that the two Y's will be the same from Y = A + mpc (Y-T) + I + G+ NX. . Suppose C = 400 + 0.75(Y â T). G = 100, I = 100, T = 100, and NX = 150, what is the Y in the goods market equilibrium? (All of the variables are in terms of million dollars)

$ million
Please enter a whole number, with no decimal point.

15.

Continue to assume that C = 400 + 0.75 (Y - 100), I = 100, and NX = 150. But the government now increases spending from 100 to 200, how much is the new Y in the goods market equilibrium?

$ million
Please enter a whole number, with no decimal point.

16.

Continue to assume that C = 400 + 0.75 (Y - 100). Then which of the following is true?

		A. The government spending multiplier = 4.
		B. The tax multiplier = 3.
		C. If the government increases spending by $50 million, and at the same time increases taxes by $50 milion to balance the budget, AD will shift to the right by $50 million.
		D. Only A and C.
		E. Only B and C.

17.

Suppose the federal government needs to balance the budget, which means that when the government spending increases, taxes must increase equally. In this case, government spending multiplier is called the balanced-budget multiplier, defined as the increase in real GDP/increase in government spending. By following the example from the previous question, how mcuh is the balanced-budget multiplier?

Please enter a whole number, with no decimal point.

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ECON 2010 Chapter : Chapter 13 Notes

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