ECN 204 Lecture Notes - Lecture 10: Aggregate Supply, Potential Output, Laffer Curve

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danotehustla

12 Apr 2017

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Explain how the economy arrives at its long-run equilibrium. Explain how to apply the long-run ad as model to explain inflation, recessions, and growth. Explain the short-run trade-off between inflation and unemployment (the phillips curve). Discuss why there is no long-run trade-off between inflation and unemployment. Explain the relationship among tax rates, tax revenues, and aggregate supply. 16. 1) from the short-run to the long run. Short-run aggregate supply: input prices are inflexible, aggregate supply curve is upwardly sloping. Long-run aggregate supply: input prices are fully flexible, vertical aggregate supply. From the short-run as to the long-run as: production above potential output: High demand for inputs: input prices rise, short run aggregate supply shifts left, return to potential output. Production below potential output: lower demand for inputs, input prices fall, short run aggregate supply shifts right, return to potential output. Sr & lr aggregate supply and equilibrium in the long-run ad-as model.

Related Questions

Determine the effect on either the aggregate demand curve (is it a rightward or a leftward shift?), the aggregate short-term supply curve, and the long-term aggregate supply curve (does the upward sloping portions of the SAS curve shift left or right, or does the vertical portion of the LAS curve shift to the right or the left?). Also determine the effect on the price level, the real output level, and employment/unemployment. Explain and express this graphically using the AS/AD macro model.

In late 2004, oil prices increased sharply while the rate of growth in labor productivity declined. The combination of these two factors should shift the short-run aggregate supply curve up (left). The increase in oil prices, when combined with the slowdown in productivity growth, will likely result in higher costs for firms at each output level. To offset these higher costs, firms increase their prices at each output level, causing the short-run aggregate supply curve to shift up (left).

crimsonturtle166

1. Which of the following is likely to happen if the Fed buys Treasury securities from banks?

interest rate rises; investment falls

interest rate rises; investment rises

interest rate falls; investment rises

interest rate falls; investment falls

2. The main goal of monetary policy is to shift

3. Which of the following is true regarding the effects of an expansionary monetary policy?

Printing more money will affect real GDP only in the short run because all prices do not adjust fully in the short run.

Printing more money will affect real GDP both in the short and long run because inflation is a natural occurrence of expansionary monetary policy.

Printing more money will not lower the value of money in the short run because prices are fully flexible in the short run.

Printing more money will ultimately raise the value of money in the long run because prices are fully flexible in the long run.

4. In which of the following cases are you likely to be adversely affected by unexpected inflation?

You, the owner of a local restaurant, charge the price of lamb lasagna as per the daily market rate of lamb.

You purchase Mountain Dew every day from the dormitory vending machine, which keeps its prices fixed for the entire school year.

You, the owner of an airline company, sign a two-year contract for airline fuel.

You deposit $10,000 in a bank account for 5 years for a fixed interest rate of 1%.

5. The Phillips curve depicts the relation between

real GDP and price level.

price level and inflation rate.

unemployment rate and inflation rate.

unemployment rate and real GDP.

6. Which of the following statements is true regarding the shapes of short-run and long-run Phillips curves?

The short-run Phillips curve is vertical and the long-run Phillips curve is downward sloping.

The short-run Phillips curve is downward sloping and the long-run Phillips curve is vertical.

Both the short-run and long-run Phillips curves are downward sloping.

Both the short-run and long-run Phillips curves are vertical.

7. Suppose the table below lists the actual annual inflation rates for 2010 to 2015. What would be the most likely predictions people make about the inflation rate for 2016 based on adaptive and rational expectations theories, respectively?

Year	Actual Inflation rate
2010	0%
2011	0%
2012	3%
2013	3%
2014	6%
2015	6%

8. Which of the following can change relatively quickly in the short-run?

the price of a latte in a coffee shop

the salary of a finance professor

the rent paid for a store

copperherring529

Determine the effect on either the aggregate demand curve (is it a rightward or a leftward shift?), the aggregate short-term supply curve, and the long-term aggregate supply curve (does the upward sloping portions of the SAS curve shift left or right, or does the vertical portion of the LAS curve shift to the right or the left?). Also determine the effect on the price level, the real output level, and employment/unemployment. Explain and express this graphically using the AS/AD macro model.

If workers begin to expect more inflation in the future, then we would expect that the short-run aggregate supply curve will shift up. If workers expect more inflation in the future, they will want their wages to increase more rapidly today. This will increase production costs at each production level, causing firms to increase prices at each production level.

skykoala735

ECN 204 Lecture Notes - Lecture 10: Aggregate Supply, Potential Output, Laffer Curve

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