Is the New Keynesian theory of business cycle compatible with rational expectations? O No, it is only compatible with adaptive expectations O Yes, assuming that both prices and wages are sticky O Yes, because the New Keynesian supply curve is derived by profit maximization O No, because firms myopically adjust their production to change in price

Is the New Keynesian theory of business cycle compatible with rational expectations? O No, it is only compatible with adaptive expectations O Yes, assuming that both prices and wages are sticky O Yes, because the New Keynesian supply curve is derived by profit maximization O No, because firms myopically adjust their production to change in price

Macroeconomics

13th Edition

ISBN:9781337617390

Author:Roger A. Arnold

Publisher:Roger A. Arnold

Chapter16: Expectations Theory And The Economy

Section16.5: Looking At Things From The Supply Side: Real Business Cycle Theorists

Problem 2ST

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Suppose in the real business cycle model that there is a simultaneous temporary increase inboth current government spending and in the current money supply. Draw diagrams for thelabour, goods and money market, and the production function. Determine the equilibriumeffects of these two shocks occurring simultaneously on employment, output, consumption,investment, money, real wages, the real interest rate, and the price level. Provide a detailedeconomic analysis explaining your results with the aid of the diagrams.
According to adaptive expectations, what happensto the inflation rate and the unemploymentrate in the following situations?a. Initially, the economy is operating at thenatural rate of 6 percent unemployment.The anticipated rate of inflation is6 percent, and the actual rate is also6 percent.b. In the next period, there is an unexpected risein the inflation rate to 10 percent.c. In the next period, there is an unexpected risein the inflation rate to 12 percent.
1) According to the Phillips Curve, as unemployment falls what happens to inflation? Why? 2) According to the Phillips Curve, as unemployment rises what happents to inflaiton? Why? 3) According to the Aggregate Supply/ Aggrgeate Demand model, if AD increases what happebs to Price Level GDP and Unemployment 4) Accroding to the AS/AD model, if AD decreases what happens to PL, GDP and unemployment? 5) According to the AS/AD model if AS decreases what happens to PL GDP and unemployment? 6) Based on your answer to #5 how would you show the decrease in AS on the Philips Curve?
Two main macroeconomic concerns are the problems of inflation andunemployment.a. What are the social costs of inflation? Explain TWO of them? b. What is natural rate of unemployment? Explain the TWO main causesof natural rate of unemployment. With reference specifically to ONEof these causes, suggest ONE practical government policy that reducesthe natural rate of unemployment.
Specific subject - Macroeconomic Analyse the case of a negative supply shock caused by an increase in oil prices and compare with the shock caused by the Covid pandemic. What would be the similarities and differences between the two shocks? What would be the effect of an expansionary economic policy (increase in aggregate demand)? Graph What measures or government intervention would be most appropriate to deal with both types of shocks? Graph Compare the adjustment in both cases with and without government intervention. Graph
“Households decide to save a larger share of their income will shift aggregatedemand curve upward because higher saving will boost investment which inturn increase the demand for investment goods.” Do you agree with thestatement? Explain your choice. e. Graphically derive short run Phillips curve with the help of aggregate demand and supply model.
Suppose that the interest rate on a one-year Treasury bill is currently 1%and that investors expect that the interest rates on one-year Treasury bills over thenext three years will be 2%, 3%, and 2%, respectively. Suppose that the expectationshypothesis holds. Calculate the current interest rates on two-year, three-year, andfour-year Treasury notes.
Attached: Figure 2: Keynes’s AD-AS Model Question 1 Changes in which factors could cause aggregate demand to shift from AD to AD1? What could happen to the unemployment rate? What could happen to the inflation rate? Question 2 The Keynesian AD-AS model describes what happens with price levels when aggregate demand increases. Could you find any evidence from the last ten-fifteen years that might support AD-AS model descriptions of demand-pull inflation, cost-push inflation, and recession? For example, you could find data on the GDP’s of any two countries from 2000 to 2017 to support your findings. In macroeconomics, the immediate short run is known as a length of time when both input prices and output prices are fixed. In the short-run, input prices are fixed but output prices are variable. In the long run, input prices and output prices can vary. What happens in the immediate short-run when AD rises from AD to AD2 to the price level and output? What happens in the short-run when…
1Why low rate inflation is considered necessary for economic grwoth? Oa It does not affect the purchasing power of wages Ob. It indicates that the currency is in continuous demand by the people Oc taffects only the rich and not the poor Od itact as an incentive to boost in supply in the economy 2When the economy is in Keynesian macroeconomic equilibrium, planned investment is greater than actual investment. O a False O b. True 3Government fixes the floor and ceiling price which will not allow the producers to increase the price on their wish, this is a type of. O a Physical control called price pegging O b. Monetary policy control measures O. Physical control called price tagging Od. Fiscal policy control measures O e None 4Rising output coupled with falling prices is called stagflation O a. False O b. True 5The Value of marginal propensity to consume lies O a. O to 1 O b. Less than zero Oc -1 to 1 Od. Between O to 1 6The Central Bank way to control inflation is Oa Monetary policy…
Consider the expectations augmented Phillips curve model. Suppose that we are starting from long - runequilibrium with a central bank which cares a lot about unemployment and relatively little about inflation.a) Draw and carefully label the graph of this situation. b) Explain where the Phillips curve comes from inthis model. c) Explain why the equilibrium you specify is the only Nash equilibrium. d) Now suppose that anew central bank governor is appointed who cares a lot about inflation and relatively little aboutunemployment. Redraw your graph twice, once showing what happens if private agents know the newgovernor's preferences and again showing what happens if private agents mistakenly believe that thenew governor has the same preferences as the old governor. Explain clearly why the outcome is differentin the two cases.
Suppose that the Phillips curve is given byπ t = π te − α ( u t − u n ) ,where the estimated value of the natural rate of unemployment, un = 4.5% and α = 0.4. The expectations are myopic (i.e. fully backward), thus πte = πt−1.a) What is the sacrifice ratio in this economy? Explain in words.Suppose that at time t = 0 unemployment is initially equal to the natural rate (i.e. u0 = 4.5%) and π0 = 7.5%. The central bank decides that 7.5% inflation is too high and that starting in year 1 it will decrease inflation to 3.5%.
c. According to the Keynesian theory, what would be the effect of the “A wave of investor and consumer pessimism about the future profitability of capital investments and lower future income” on output (Y), the real interest rate (r), employment (L) and the price level (P)? Distinguish between the short run and the long run effects by using the IS-LM-FE and AD-AS models and the effective labor demand theory.