Match the statement to whether it describes rational expectations or adaptive expectations: A. Decisions are relatively slow to respond to new information about the economy B. If people expect it to rain a lot next month, they will start buying umbrellas today to take advantage of the relatively lower prices 1. Rational expectations 2. Adaptive expectations

Match the statement to whether it describes rational expectations or adaptive expectations: A. Decisions are relatively slow to respond to new information about the economy B. If people expect it to rain a lot next month, they will start buying umbrellas today to take advantage of the relatively lower prices 1. Rational expectations 2. Adaptive expectations

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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4. Study Questions and Problems #4 Suppose you flipped an honest coin 10 times and tails came up 4 times. You are about to toss the coin another 10 times. Complete the statements that follow to indicate how many tails you would expect in the next 10 coin flips based on adaptive expectations theory and rational expectations theory. Using adaptive expectations, you would expect tails to come up. Using rational expectations, you would expect tails to come up.
Q.Assume that a commercial real estate whose monthly rent is TRY6,000 is to be sold at TRY4,000,000. Inflation rate has been 10% and the nominal interest rate 16% on the average for the last 15 years. The economy has grown at a real rate of 4% over the same period, so have rental revenues. If an investor has adaptive expectations, should he/she buy the real estate or not? Explain why.
The Phillips curve shows that, in the short-run: A. expected changes in aggregate demand produce a positive relationship between inflation and unemployment. B. unexpected changes in aggregate demand produce a positive relationship between inflation and unemployment. C. expected changes in aggregate demand produce an inverse relationship between inflation and unemployment. D. unexpected changes in aggregate demand produce an inverse relationship between inflation and unemployment.
3. Explain how a rise in Government expending affects:3.1. The Phillips curve in the short run? How do you think are employers and employees going to react to this policy under adaptive expectations? 3.2. If the demand policy continues to apply how this is going to affect the Philips curve in the long run? 3.3. What about if the agents have rational expectations, is this policy effective?
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Suppose that an economy has the Phillips curve π = π−1 − 0.5( u − 0.06). a. What is the natural rate of unemployment? b. Graph the short-run and long-run relationships between inflation and unemployment. c. How much cyclical unemployment is necessary to reduce inflation by 5 percentage points? Using Okun’s law, compute the sacrifice ratio. d. Inflation is running at 10 percent. The Fed wants to reduce it to 5 percent. Give two scenarios that will achieve that goal.
Suppose that a fall in consumer spending causes a recession. a. Illustrate the changes in the economy using both an aggregate supply/aggregate demand diagram and a Phillips curve diagram. What happens to inflation and unemployment in the short run? (5%) b. Now suppose that over time, expected inflation changes in the same direction that actual inflation changes. What happens to the position of the short-run Phillips curve? After the recession is over, does the economy face a better or worse set of inflation– unemployment combinations? (5%)
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The accompanying graph depicts the Short-Run Phillips O Curve (SRPC) when the public expects no inflation in the economy. Macmillan Learning a. According to this SRPC, what would inflation be if unemployment is 9%? 0 Incorrect b. Please move the SRPC line to reflect what would happen if the public's inflation expectations increased so that they now expect the inflation rate to increase by 2%. c. If the unemployment rate is still 9%, what is the new inflation rate after this change in expectations? % 2 % Inflation rate (%) 7 6 5 4 3 2 1 0 -1 -2 -3 0 1 SRPC 2 3 4 5 6 Unemployment rate (%) 7 8 9 10
Pick one answer for each question. 1. According to a neoclassical economist, the government should respond to a decrease in aggregate demand by ______. A. raising interest rates B. doing nothing C. balancing the budget 9. From a neoclassical perspective, the Phillips curve is vertical because ______. A. long-run unemployment is fixed at the natural rate of unemployment B. long-run aggregate supply is always the same as short-run aggregate supply c. the inflation rate is fixed in the long-run
Briefly discuss the difference between rational and adaptive expectations. (100 words max)