ECON 1102 Lecture Notes - Lecture 16: Aggregate Supply, Potential Output, Phillips Curve

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5 Sep 2016

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Aslr in the sr inputs prices are xed ex: wages - From the short run to the long run. This gave us a short-run aggregate supply curve that is upward- sloping and a long-run aggregate supply curve that is vertical. Assume that output is at full employment when the price level is at p1. Suppose that the price level rises to p2. When prices rise, firms" revenues increase, but since wages and input prices are fixed in the short run, profits rise; this is why firms raise their output. Now the economy is operating beyond full- employment output (potential output), so unemployment falls below the natural rate. Over time, due to higher demand for labour and other inputs, wages and input prices will rise. A rise in per-unit production costs makes the short-run aggregate supply curve shift to the left, moving the economy back to full-employment output and returning unemployment to the natural rate.

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.

Show that, starting from a long-run equilibrium, an increase in government expenditures increases output in the short-run but not in the long-run.

yellowmule224

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

1. If the price level doubles and the real output doesn't change, then nominal output also doubles.
2. Inflation makes it less difficult to interpret the information conveyed by prices.

3. Laissez-faire economists oppose government intervention in the market process.

4. Active demand management policies are based on the work of JohnMaynard Keynes.

5. In the AS/AD model, as the price level rises, the real value of assets increases, causing consumption to increase. This is one reason why the aggregate demand curve slopes down.

6. The short-run aggregate supply curve is upward sloping in part because increases in aggregate demand cause some firms to increase their price markups.

7. If productivity and wages both raises by 3 percent, then the short-run aggregate supply curve does not shift.

8. The long-run aggregate supply curve is vertical because all prices adjust in the long run.

9. If the economy is not in long-run equilibrium and other things are equal, then prices will eventually adjust to bring the economy to long-run equilibrium.

10. Most economists agree that it is possible for fiscal policy to fine-tune the economy.

bluewolf591

ECON 1102 Lecture Notes - Lecture 16: Aggregate Supply, Potential Output, Phillips Curve

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