Consider a standard AD-AS model. Suppose that the central bank lost credibility in the sense that people no longer believe its inflation target (that is, inflation expectations are not `anchored'). In this case, a permanently higher inflation target leads to a short-run increase in output but no long-run increase in output. Answer True or False. Remember to include your explanation.

Suppose to get re-elected, an incumbent government wants to continuously expand the economy so that people will associate high economic growth with the current government. Explain what will happen to the economy in the long run using the AD-AS model and the Phillips curve model, with properly labelled diagrams.  Thanks.

Assume an economy that starts with Y = Y₂. Illustrate graphically and explain the impact of a fall in energy prices in the IS-LM-PC model with anchored expectations. Illustrate graphically, explain, and discuss the impact of the fall in energy prices depending on whether the central bank, firms, or workers have the power to adjust the economy to keep inflation at its target rate after the fall in energy prices. ་པཕབ་པ་

Complete the following table to compare the results of an unanticipated expansionary policy to those of an anticipated expansionary policy in the short run and long run. Determine whether, in the short run, the level of output increases, decreases, or remains unchanged relative to the potential output level when the expansionary policy is anticipated versus unanticipated. Additionally, determine whether, in the long run, the actual price level is above, below, or the same as initial expectations under both scenarios, and, again, determine whether the level of output increases, decreases, or remains unchanged.   Anticipated Expansionary Policy Unanticipated Expansionary Policy Short-Run Change in Output Decrease/Increase* Decrease/Increase/No Change* Long-Run Change in Price Level Same as Initial expectation/Higher then initial expectations/ lower then initial expectations* (same options as box on the left) ** Long-Run Change in Output       Decrease/Increase/No change*…

In a certain economy, the Dynamic Aggregate Supply (DAS) line is represented by the function = - π₁ = Ę ₁ = ₁ π + α ( Y₁ − Ÿ) + D and the inflation expectations formation mechanism is adaptive, that is, E₁+1 Absent a supply shock (v₁ = 0), in a figure representing period t inflation rate, π, on the vertical axis, and period t output, Y₁, on the horizontal axis, the period t DAS line will pass through the pair of points, : OA. (-1) B. (α, Y) ○ C. (Y) D. (πt, Yt)

How would the AD/AS model be different if it assumed rational expectations rather than adaptive expectations? Define and give an example of each.

Inflationary expectations are an important driver of the Phillips curve relationship. What are three different ways inflationary expectations might be modelled? Depict each graphically.

Which of the following is true the dynamic AS-AD model? The dynamic aggregate demand curve is downward sloping because the central bank follows the Taylor principle. An increase in the natural level of output increases the long-run inflation rate. To control inflation, the central bank should increase the nominal interest rate by less than one for one in response to an increase in the inflation rate. The monetary policy rule determines the slope of the dynamic aggregate supply curve.

Compared to the Adaptive Expectations Theory, the Rational Expectations Theory A) asserts the same conclusions about policy activism.B) implies that policy activism is less effectiveC) implies that policy activism is more effective.D) asserts that people cannot anticipate the effects of policies in advance.E) the inflation arising from an expansionary policy will be less.

You work at the Central Bank and you are in charge of forecasting the effects of possible future shocks using the ASAD Redux model. Today, your task is to predict what will happen if the economy is subject to two consecutive shocks, namely, At time t = 1, there is a persistent positive shock on aggregate demand due to increased desired expenditures (e.g., a higher propensity to consume). At time t = 2, the Central Bank implements a permanent reduction in money supply. %3D The Central Bank wants you to forecast what will be the effects of a range of monetary contractions of different magnitude. Hence, you run six numerical simulations of the model assuming different sizes of the reduction in money supply. However, the software is faulty and some simulation results are wrong. Your computer produces six scenarios for employment (N) and price level (P), but some scenarios are clearly incorrect and inconsistent with the general predictions of the theoretical model: you need to eliminate the…