5. Consider an IS-TR model that consists of the following equations: Y = C + Ip C = d+0.5Y Ip 100 100i = i = : max{0, in + (Y — Yn)/Yn} Here d is a parameter reflecting aggregate consumption demand, Ip again denotes planned investment, and i interest rate. Notice that the last equation features zero lower bound on the interest rate. 4% (natural interest rate) and Yn Assume in = 400 (potential output). Determine a cut-off level d such that the zero lower bound is binding for d < d and not binding for d > d. What is the equilibrium output Y with d = d? =

5. Consider an IS-TR model that consists of the following equations: Y = C + Ip C = d+0.5Y Ip 100 100i = i = : max{0, in + (Y — Yn)/Yn} Here d is a parameter reflecting aggregate consumption demand, Ip again denotes planned investment, and i interest rate. Notice that the last equation features zero lower bound on the interest rate. 4% (natural interest rate) and Yn Assume in = 400 (potential output). Determine a cut-off level d such that the zero lower bound is binding for d < d and not binding for d > d. What is the equilibrium output Y with d = d? =

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Consider the following IS–LM model: C = 100 + .25YD I = 50 + .25Y - 1000i G = 150 T = 100 (M/P) d = 2Y - 8000i (M/P)s = 1000 a. Derive the IS relation b. Derive the LM relation c. Solve for equilibrium real output. d. Solve for the equilibrium interest rate e. Solve for the equilibrium values of C and I f. now suppose that the money supply increases to M/P = 1010. Solve for T, f. suppose that government spending increases to G = 155 What is the value of money supply? g. From what we studied, which policy, expansionary fiscal policy or expansionary monetary policy will undoubtedly increase investment.
Consider an economy with the following features: Consumption, C = 130 + 0.5Yd Income tax, T = 20 + 0.2Y Investment, I = 200 – 600r Government expenditure, G = 112 Real money demand, Md/P = 50 + 0.5Y – 600r Nominal money supply, Ms = 600 Price level, P = 2 where Yd stands for disposable income, and r for the rate of interest. Derive the IS and LM equations. Calculate the equilibrium levels of income and rate of interest.
I have to analyze, using the IS-LM model, the macroeconomiceffects of an increase in savings in the short term and its implications for long-term growth. Specifically, I have to suppose that households (consumers) lose confidence and start saving more for any level of disposable income. In terms of total savings and, therefore, of potential long-term growth, is a flat LM curve or a positive sloping LM curve better, in which investment was assumed to be exogenous?
Using the IS LM model, show how expansionary monetary and expansionary fiscal have same effect on output but opposite impact on interest rates. b. Derive the equations for IS and LM curves from the set of equations given below: C = 80+ 0.75Yd I = 300-200 i G is government expenditure G = 30 T = 30 where T= taxes Ms = 270 where Ms is money supply Md = 150+ 0.30Y – 300i Find the volume of investment at equilibrium . What would be the impact on investment if Money supply is increased to 300.
Explain the IS LM model for reduced policy rate in goods and services market and finincal market
Do you remember the Harrod-Domar model? Derive it and apply it to a numerical case where d=4%, s=35%, and gY=8% last year. If s is expected to rise to 45% next year, what will happen to gY?
Suppose in a closed economy, an unexpected pandemic discourages household consumption.i. Use the IS-LM model to explain its effects on interest rate, investmentand output level in the short run.
Question 2Explain fully how the AS/AD model is an update of the Keynesian model. Provide a graph of the equilibrium income in the Keynesian model, and compare it with a graph of the equilibrium income in the AS/AD model. Why are negative supply shocks much more harmful to an economy compared with negative demand shocks? Compare the policies which can be used to address negative demand shocks with policies to address negative supply shocks.
The following equations describe a Keynesian model of a closed economy: C = 500 - 0.5(Y - T) - 100r I = 350 - 100r L = 0.5Y - 200i πe = 0.05 G = T = 200 Y = 1850 M = 3560 a. Find the full-employment equilibrium values of the real interest rate, consumption, investment, and the price level. b. Suppose government purchases decline to 175, with no change in taxes. What happens to the real interest rate, output, consumption, and investment in the short run (in which the price level is fixed)? What happens in the long run to the real interest rate, consumption, investment, and the price level? c. Suppose instead that government purchases rise to 225, with no change in taxes, starting from the equilibrium in part (a). What happens to the real interest rate, output, consumption, and investment in the short run (in which the price level is fixed)? What happens in the long run to the real interest rate, consumption, investment, and…
Suppose the economy of Ghana in 2020 was characterized by C = ¢400m + 0.75(Y-T); I = ¢400m - 20r; G = ¢200m; T = ¢200m; Ms = ¢250m/P; Md = 0.25Y - 10r a. Derive the IS and LM curve equations. Give a brief explanation as to why they are positively or negatively sloped. b. Calculate equilibrium output and interest rates (in this case assume P=1). Econ313 2020/2021 PROBLEM SET 2 Page 1 of 2 c. Suppose the government of Ghana in the second half of 2020 spent an additional ¢50m to mitigate the impact of the COVID pandemic on households and businesses and government tax revenue declined by 10% as a result of the lockdown in Ghana what will be the new equilibrium output? d. Will the policy in (c) above have an impact on interest rate? Briefly explain. e. What is the amount of the fiscal deficit incurred as a result of the government fiscal policies as pursued in (c) above?
The US Government is facing major budget deficit deciding between implementing fiscal and monetary policy to boost output back to potential output. In the presence of expectations, using the IS-LM model graph the effects on the US economy from a contractionary fiscal policy? What would happen if this change is perceived as permanent by investors? Graph and explain. What would happen if the government was perceived as wasteful? Graph and explain.
Suppose that in Macroland the consumption and the investment have a negative relationship withthe real interest rate and positive relationship with Y. The Central Bank of the country targets acertain nominal interest rate and lets the money supply adjust in order to reach that interest rate.a. Draw a graph of the IS-LM model in this situation.b. Suppose that the Central Bank announces an increase of the interest rate in the future.Represent graphically the initial position of IS-LM curves. Then, show the IS-LM curves of thefuture, after the announced increase in the interest rate is implemented. (Assume that the ISis constant.).c. Suppose that agents today take into consideration the resulting income of the future whendeciding the amount of consumption and investment. Show what happens to the IS-LMcurves today after the announcement of the CB (tip: the CB is NOT increasing the nominalinterest rate today).d. The government decides to step in and avoid any deviation of Y from the initial…