Consider the following scenario. Aggregate output y at date t is specified as follows, where the trend level of output is represented by g. The central bank's loss function is captured by Where b> 0, and where k > 0 is a given parameter reflecting the normal level of aggregate production or the target level of output. The central bank takes the public's expectations as given. The society loss function is the same as the central bank loss function. Notation tinroducti nflation rate BYpecter flation rate T
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- Consider the AD-AS model discussed during the lectures. Assume that the aggregate demand curve is given by Y=8-0.5 π, that the long run aggregate supply curve is given by Yp=7, that the short run aggregate supply curve is given by π = π_expect + 0.3(Y-Yp), and that the monetary rule is given byr=1+0.3 π. Suppose the economy is suffering a decrease in the potential level of output, due to some ill-designed new regulation. According to the AD- AS model, what is more suitable to offset the subsequent decline in output, an expansionary monetary policy or an expansionary fiscal policy?Please only answer part D (I already have part a, b, and c) In the New Keynesian model, suppose that in the short run the central bank cannot observe aggregate output or the shocks that hit the economy. However, the central bank would like to come as close as possible to economic efficiency. That is, ideally the central bank would like the output gap to be zero. Suppose initially that the economy is in equilibrium with a zero-output gap. (a) Suppose that there is a shift in money demand. That is, the quantity of money demanded increases for each interest rate and level of real income. How well does the central bank perform in relative to its goal? Explain using diagrams. (b) Suppose that firms expect total factor productivity to increase in the future. Repeat part (a). (c) Suppose that total factor productivity increases in the current period. Repeat part (a). (d) Explain any differences in your results in parts (a)–(c) and explain what this implies about the wisdom of following an…In the New Keynesian model, suppose that in the short run the central bank cannot observe aggregate output or the shocks that hit the economy. However, the central bank would like to come as close as possible to economic efficiency. That is, ideally the central bank would like the output gap to be zero. Suppose initially that the economy is in equilibrium with a zero-output gap. (a) Suppose that there is a shift in money demand. That is, the quantity of money demanded increases for each interest rate and level of real income. How well does the central bank perform in relative to its goal? Explain using diagrams. (b) Suppose that firms expect total factor productivity to increase in the future. Repeat part (a). (c) Suppose that total factor productivity increases in the current period. Repeat part (a). (d) Explain any differences in your results in parts (a)–(c) and explain what this implies about the wisdom of following an interest rate rule for the central bank. Problem 6 assumes that…
- In the full SR model, IS-LM, we know that if to falls, cet. par., then the real Money Supply will increase. True, False, Uncertain? Explain. Show graphs in i-Y space and i-M/P spaces.Assume that as a consequence of an IS shock the economy is initially at a point with output above equilibrium (y > ye), and inflation of 4% above a 2% target. By means of a diagram, explain how the central bank will respond to this new information about economic conditions and discuss the effects on the economy.For each of the following scenarios, assume the economy experiences an exogenous decrease in investment demand. For each case, illustrate the IS-LM-FX diagram and state the effect of the shock (increase, decrease, no change, or ambiguous) on the following variables: Y, i, E, C, I, TB. Here, we assume the policy makers’ objective is to keep output fixed at its initial value
- Explain the IS LM model for reduced policy rate in goods and services market and finincal marketAssume a two-sector economy model is given by: Y = C + I, C = 97 + 0.7Y, I = 180 – 125i M s = 255, L 1 = 0.2Y, L 2 = 220 – 175i where Y is income, C is consumption, I is investment, i is rate of interest, M s is money supply, L 1 is transactionary demand for money and L 2 is speculative demand for money. a) Find the equilibrium income level and interest rate, together with equilibrium levels of C, I, L 1 and L 2 . b) Show what happens to the equilibrium conditions if autonomous investment falls from 180 to 110. c) Demonstrate your answers to (a) and (b) graphically.Use the IS-LM model to describe the short-run effects of a decrease in the money supply on the equilbrium output and real interest rate. Assuming the economy is in a long-run equilibrium before the shock, also explain how the price level changes over time, and what happens to the economy in the long run. Use the AS-AD framework for this part of the question. Add diagrams to illustrate the answer - you can use the attachment feature of the answer editor to upload your chart.
- Assume that a country’s economy is in a short-run equilibrium and the actual unemployment rate is lower than the natural rate of unemployment. Using a correctly labeled graph of the long-run aggregate supply curve, short-run aggregate supply curve, and aggregate demand curve, show each of the following. Current price level, labeled PL1, and current output level, labeled Y1 The full-employment output level, labeled YF. What open-market operation can the country’s central bank use to move the economy toward its long-run equilibrium? Use a correctly labeled money-market graph to show how the country’s central bank action to move the economy toward its long-run equilibrium affects the equilibrium nominal interest rate in the short run. Based on the interest rate change from part (c), will each of the following increase, decrease, or remain the same in the short run? Real output. Explain. Natural rate of unemployment Assume instead that the central bank does not pursue…Assume our complete 4-panel model of the economy in equilibrium at Y-full employment. If the Fed buys up government securities from the public, macroeconomists predict which one of the following? Group of answer choices a)In the long run there will be some inflation and aggregate output will eventually return to its full employment level. b)The short run aggregate demand curve shifts to the left and the short run aggregate supply curve shifts to the right. c)In the long run there will be some inflation and aggregate output will be permanently pushed above Y-full employment. d)The short run aggregate demand curve shifts to the right and the short run aggregate supply curve shifts to the right.Suppose the economy begins at full employment. Label this starting point as point "1." Then, suppose that, due to increased instability in the financial markets, a decrease in investor and consumer confidence occurs. Show the effects on your graph and label the new equilibrium point "2." Lastly, suppose the Federal Reserve wants the economy to return to full-employment as quickly as possible. Should the Fed intervene? If so, show the impact of successful monetary policy on your graph. Label this new equilibrium point "3."