Consider the AD-AS model: Y = Y* − αy (π − π*) + €D - π = π² + þß (Y− Y*) + €s Suppose the parameter values are a = 0.5, y = 2,6 = 0.5, B = 2 with inflation target * and natural output normalized to Y* = 1. Suppose the economy begins in an initial long run equilibrium. 0.02

Consider the AD-AS model: Y = Y* − αy (π − π) + €D - π = π² + þß (Y− Y) + €s Suppose the parameter values are a = 0.5, y = 2,6 = 0.5, B = 2 with inflation target * and natural output normalized to Y* = 1. Suppose the economy begins in an initial long run equilibrium. 0.02

Economics (MindTap Course List)

13th Edition

ISBN:9781337617383

Author:Roger A. Arnold

Publisher:Roger A. Arnold

Chapter14: Money And The Economy

Section: Chapter Questions

Problem 1WNG

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Consider the AD-AS model: Y = Y* ay (π = π*) + ED ㅠ π = π² + 08 (Y-Y*) + €s Suppose the parameter values are a = = 0.02 0.5, y = 2, p = 0.5, B = 2 with inflation target * and natural output normalized to Y* = 1. Suppose the economy begins in an initial long run equilibrium.
Consider an AD-AS model with AD curve Y – Y* = - αγ (π - π*) + εand AS curve π = π + φβ(Y – Y*) + εwith parameter values α = 0.5, γ = 1, φ = 1, β = 0.5,and with inflation target π* = 0.02 and potential output normalised to Y* = 1.Starting from a long-run equilibrium with π = π* suppose there is a temporary demand shock ε = -0.05. Which of the following is TRUE? 1.In the short run, output is 5% below trend 2.In the short run, output is 4% below trend 3.In the short run, inflation is 1% 4.In the long run, output is 5% below trend
Consider an AD-AS model with AD curve Y - Y* = −αy(n − ñ*) + € and AS curve π = π² + ¢ß(Y – Y*) + €s with parameter values a = 2, y = 1, p = 1 and ß = 2 and with inflation target * = : 0.01 and potential output normalised to Y* : = 1. e T Starting from a long-run equilibrium with ² = *, suppose there is a temporary supply shock €s = 0.05. Which of the following is FALSE? In the short run, inflation is 1% above target In the short run, output is 2% below potential In the short run, the real interest rate rises O In the short run, the real interest rate falls
Consider the following 3-equation model: Y 108-2rCB +2(G-T) (1) rCB =4+1.5(\pi-\pi)+0.5(Y-Y) (2) \pi \pie+0.5(YY) (3) wherey isoutput, \pi isinflation, \pi e =\pi = 2, andY* = 100. Expected future inflation is \pi e, and Y-Y⚫ is the output gap. The variable rCB is the interest rate set by the central bank. We may interpret \pi as the central bank's inflation target. Government ex- penditure, G, and net taxes, T, are given and set by the government. (a) Which equation is the IS curve, and which is the New Keynesian Phillips curve? Provide a brief economic explanation for the relationship between \pi and \pi e in Equation (3). (b) Find inflation, output and interest rates when G = T = 5. (c) Now suppose G = 8.5 and T = 5. How are inflation, output and interest rates affected? Is the impact of the fiscal expansion on output magnified or reduced by monetary policy? Explain.
Consider the short-term model characterized by the following AS and AD curves: Ý, = à – bm(x, – ñ) (AD] and A; = x; + vỶ, + õ, (AS). The economy is in steady state at time t = -1 (that is, a-1 = ñ, ō-1 = 0, and ā = 0). It is hit by a one-time inflation shock öy = .025 at time i = 0. For now, expectations are adaptive: 7 = ,-1. You'll use the answer to this question in several follow-up questions. To keep track of your results, you should use a spreadsheet application. If you don't already have one, you can use this hyperlinked template e (it's a Google Sheet). Calculate zo assuming b = 0.5, m = 2, ñ = 0.03, and ū = 1. Enter your answer as a percentage and round to the nearest hundredth.
H2
Consider the ASIAD model. The AS curve is: Y, = a - bm(n, - 7) and the AD curve is: T, = T;-1 + TỸ, +ō. where a is inflation and Y is short-run output. The subscript t indexes time. T = 0.01, 0 = 0.02, ā = 0.04, b = 0.05, and m = 0.04 are fixed strictly positive parameters. Assume the inflation target n is 0.02 (or 2%). Imagine the Bank of England decides to increase its inflation target to 0.04 (or 4%) What happens to short-run output Ỹ in the period immediately after the shock? a. increases O b. decreases Oc. stays the same
A Central Bank is said to have a more hawkish stance when it reacts more aggressively against deviations of inflation from target. Recall that the AD curve is given by: Ýį = ā – bm(T; – ñ), and the AS curve is given by Tt = Tt-1 + ū¥Ýt +ō Knowing this, saying that the Central Bank became more hawkish is equivalent to say: Inflation, AS AD Output, Ỹ O That ā decreased, thus moving down the AD curve. O That b decreased, thus making the AD curve steeper. That ū increased, thus making the AS curve steeper. O That ñ decreased, thus flattening the AD curve. O That the equilibrium inflation moved to below ĩñ. That b decreased, thus making the AD curve flatter. O That ā increased, thus moving up the AD curve. O That ñ increased, thus flattening the AD curve.
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- Consider an AD-AS model with AD curve Y - Y* = -αy(π − π*) + €D and AS curve π = π² + ¢ß(Y−Y*) + es with parameter values a = 2, y = 1,6 = 1, ß = 2, and with inflation target * = 0.01 and potential output normalised to Y* = 1. Starting from a long-run equilibrium with ² = π*, = π*, suppose there is a temporary supply shock es = 0.05 and a temporary demand shock ED = 0.05. Which of the following is TRUE? In the short run, inflation is 1% above target O In the short run, output is 2% below potential O In the short run, the real interest rate rises O In the short run, the real interest rate falls
Consider the AS/AD model. The AS curve is: Y, = a – bm(r, - 7) and the AD curve is: Thy = T-1 + DỸ, +ō. where r is inflation and Y is short-run output. The subscript t indexes time. ī = 0.01,0 = 0.02, ā = 0.04, b = 0.05, and m = 0.04 are fixed strictly positive parameters. Assume the inflation target is 0.02 (or 2%). Calculate Y at the steady state. (If you answer is 3%, do not put the percentage sign enter 3 or 0.03).
Q1 [Inflation in a monetary OLG model] Consider an overlapping generations model in which individuals live for two periods, young and old. The economy begins in period 1, when there are NO numbers of the initial old. In each period t 2 1, Nt young individuals are born, where Nt = nNt-1 and n>1. There is only one good in this economy. The good cannot be stored from one period to the next. In each period, each young individual is endowed with y units of the consumption good and old individuals have zero endowment. The young generations' preference can be expressed use the following utility function: u(c1,t, c2,t+1) = log(c1,t) + B log(c2,t+1) Members of the initial old generation only live for one period and have utility u(co,1) = logc0,1. In this economy, individuals can use fiat money to facilitate trades between different generations. Assume the stock of fiat money M grows at a constant rate y, i.e., Mt = yMt-1, where y >1. The money created each period is used to finance a lump- sum…