Explain why the following statements are false. a. The aggregate-demand curve slopes

Name two macroeconomic variables that decline when the economy goes into a recession. Name one macroeconomic variable that rises during a recession.

Draw a diagram with aggregate demand, short-run aggregate supply, and long-run aggregate supply. Be careful to label the axes correctly

List and explain the three reasons the aggregatedemand curve is downward sloping.

Explain why the long-run aggregate-supply curve is vertical.

List and explain the three theories for why the short-run aggregate-supply curve is upward sloping.

What might shift the aggregate-demand curve to the left? Use the model of aggregate demand and aggregate supply to trace through the short-run and long-run effects of such a shift on output and the price level.

What might shift the aggregate-supply curve to the left? Use the model of aggregate demand and aggregate supply to trace through the short-run and long-run effects of such a shift on output and the price level.

Suppose the economy is in a long-run equilibrium. a. Draw a diagram to illustrate the state of the economy. Be sure to show aggregate demand, short-run aggregate supply, and long-run aggregate supply. b. Now suppose that a stock-market crash causes aggregate demand to fall. Use your diagram to show what happens to output and the price level in the short run. What happens to the unemployment rate? c. Use the sticky-wage theory of aggregate supply to explain what will happen to output and the price level in the long run (assuming there is no change in policy). What role does the expected price level play in this adjustment? Be sure to illustrate your analysis in a graph.

Explain whether each of the following events will increase, decrease, or have no effect on long-run aggregate supply. a. The United States experiences a wave of immigration. b. Congress raises the minimum wage to $10 per hour. c. Intel invents a new and more powerful computer chip. d. A severe hurricane damages factories along the East Coast.

Suppose an economy is in long-run equilibrium. a. Use the model of aggregate demand and aggregate supply to illustrate the initial equilibrium (call it point A). Be sure to include both short-run and long-run aggregate supply. b. The central bank raises the money supply by 5 percent. Use your diagram to show what happens to output and the price level as the economy moves from the initial to the new short-run equilibrium (call it point B). c. Now show the new long-run equilibrium (call it point C). What causes the economy to move from point B to point C? d. According to the sticky-wage theory of aggregate supply, how do nominal wages at point A compare to nominal wages at point B? How do nominal wages at point A compare to nominal wages at point C? e. According to the sticky-wage theory of aggregate supply, how do real wages at point A compare to real wages at point B? How do real wages at point A compare to real wages at point C? f. Judging by the impact of the money supply on nominal and real wages, is this analysis consistent with the proposition that money has real effects in the short run but is neutral in the long run?

In 1939, with the U.S. economy not yet fully recovered from the Great Depression, President Roosevelt proclaimed that Thanksgiving would fall a week earlier than usual so that the shopping period before Christmas would be longer. Explain what President Roosevelt might have been trying to achieve, using the model of aggregate demand and aggregate supply

Explain why the following statements are false. a. The aggregate-demand curve slopes downward because it is the horizontal sum of the demand curves for individual goods. b. The long-run aggregate-supply curve is vertical because economic forces do not affect long-run aggregate supply. c. If firms adjusted their prices every day, then the short-run aggregate-supply curve would be horizontal. d. Whenever the economy enters a recession, its long-run aggregate-supply curve shifts to the left.

For each of the three theories for the upward slope of the short-run aggregate-supply curve, carefully explain the following: a. How the economy recovers from a recession and returns to its long-run equilibrium without any policy intervention. b. What determines the speed of that recovery.

Suppose the Fed expands the money supply, but because the public expects this Fed action, it simultaneously raises its expectation of the price level. What will happen to output and the price level in the short run? Compare this result to the outcome if the Fed expanded the money supply but the public didnt change its expectation of the price level.

The economy begins in long-run equilibrium. Then one day, the president appoints a new chairman of the Federal Reserve. This new chairman is well-known for his view that inflation is not a major problem for an economy. a. How would this news affect the price level that people would expect to prevail? b. How would this change in the expected price level affect the nominal wage that workers and firms agree to in their new labor contracts? c. How would this change in the nominal wage affect the profitability of producing goods and services at any given price level? d. How does this change in profitability affect the short-run aggregate-supply curve? e. If aggregate demand is held constant, how does this shift in the aggregate-supply curve affect the price level and the quantity of output produced? f. Do you think this Fed chairman was a good appointment?

Explain whether each of the following events shifts the short-run aggregate-supply curve, the aggregate-demand curve, both, or neither. For each event that does shift a curve, draw a diagram to illustrate the effect on the economy. a. Households decide to save a larger share of their income. b. Florida orange groves suffer a prolonged period of below-freezing temperatures. c. Increased job opportunities overseas cause many people to leave the country

For each of the following events, explain the short-run and long-run effects on output and the price level, assuming policymakers take no action. a. The stock market declines sharply, reducing consumers wealth. b. The federal government increases spending on national defense. c. A technological improvement raises productivity. d. A recession overseas causes foreigners to buy fewer U.S. goods.

Suppose firms become very optimistic about future business conditions and invest heavily in new capital equipment. a. Draw an aggregate-demand/aggregatesupply diagram to show the short-run effect of this optimism on the economy. Label the new levels of prices and real output. Explain in words why the aggregate quantity of output supplied changes. b. Now use the diagram from part (a) to show the new long-run equilibrium of the economy. (For now, assume there is no change in the long-run aggregate-supply curve.) Explain in words why the aggregate quantity of output demanded changes between the short run and the long run. c. How might the investment boom affect the long-run aggregate-supply curve? Explain

In economy A, all workers agree in advance on the nominal wages that their employers will pay them. In economy B, half of all workers have these nominal wage contracts, while the other half have indexed employment contracts, so their wages rise and fall automatically with the price level. According to the sticky-wage theory of aggregate supply, which economy has a more steeply sloped short-run aggregatesupply curve? In which economy would a 5 percent increase in the money supply have a larger impact on output? In which economy would it have a larger impact on the price level? Explain.