Assume that the economy is initially operating at the natural level of output. Graphically illustrate (using the IS-LM-PC model) how the economy adjusts to a decrease in taxes both in the short run and in the medium run
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- The total expenditure in Macroland begins with these initial levels (in trillions of dollars): autonomous consumption=1, Investment = 2; Net Exports = 0, T=2, and MPC = 0.75. Assume that equilibrium has been achieved. Suddenly there is an external shock and as a result investment goes down to 1. What is the change in GDP? Use the base model to answer this question. Equilibrium GDP goes down by 1 Equilibrium GDP goes up by 1 Equilibrium GDP goes up by 4 Equilibrium GDP goes down by 4Assume an economy is currently operating at point A. Illustrate using the IS-LM model how the policy recommendations you provide in c) will impact the economy. On your diagram indicate the new point that the policy takes the economy to and label this as point B.Assume the following model of the expenditure sector: S=C+I+G+Nx TR=100 C=420+(4/5)YD I=160 G=180 Nx=-40 YD=Y+TR-TA TA=(1/6)Y If the government would like to increase the equilibrium level of output (Y) to the full employment level Y*=2,700, by how much should government purchases (G) be changed?
- consider a simple Macroeconomic Model With the following equations: C=500 + 0.9 YD I=650 G=1000 T=0.3Y X=700 IM= 0.23Y a) calculate equilibrium national level of income b) calculate the governments budget balance at the equilibrium national level of income c) calaculate the countrys trade balance d) calculate the mulitplier for this economyAn economy is described by the following: C=20+0.9Y I=120-200r. Md=250+0.2Y-400r. Ms/P=1250 Y=70 W=17.5 Lf=144 a) Find AS and AD. b) Find the equilibrium level of Y and P c) Graphically represent this economy d) Find the long-run Y of this economy. e) What is the level of government expenses G, the government needs to impose in order to lead the economy to the full employment? (Show the long-run graphically).Use the Keynesian cross model to predict the impact of an increase in government purchases on equilibrium GDP. State the direction of the change and give a formula for the size of the impact. An increase in taxes shifts the planned expenditure function downward. The change in income is given by AY= ΔΥ= -MPC 1-MPC An increase taxes shifts the planned expenditure function upward. The change in income is given by -MPC 1-MPC AY= XAT An increase in taxes shifts the planned expenditure function inward. The change in income is given by AY= 1 1-MPC XAT 1 1-MPC The direction of the shift is undetermined without knowing the slope of the PE function. The change in income is given by XAT XAT
- An economy is described by the following equations: C = 80+ 0.9 (Y-T) IP = 100 G = 150 NX = 30 T = 180 Y* = 1,800 The multiplier in this economy is 10. a. Find a numerical equation relating planned aggregate expenditure to output. Instructions: Enter your response for mpc rounded to one decimal place. PAE = + Y b. Construct a table to find the value of short-run equilibrium output. Instructions: If you are entering any negative numbers be sure to include a negative sign (-) in front of those numbers. Output Planned aggregate expenditure Y (PAE) 1,780 1,880 1,980 2,080 2,180 Y- PAE Short-run equilibrium output is . c. By how much would government purchases have to change in order to eliminate any output gap? By how much would taxes have to change? In order to eliminate any output gap, government purchases would have to be (Click to select) reduced increased by. In order to eliminate any output gap, taxes would have to be (Click to select) increased reduced by . d. If y* = 2,070, then by…Find equilibrium GDP using the following macroeconomic model (the numbers, with the exception of the MPC, represent billions of dollars): C = 1,250 + 0.80Y |= 1,250 G = 2,000 Consumption function Planned investment function Government spending function NX = - 500 Y= C +1+G+ NX Net export function Equilibrium condition The equilibrium level of GDP is $ billion. (Round your answer to the nearest billion dollarsStarting from general equilibrium, what would be the long-run effects of a simultaneous reduction in government purchases (G↓) and increase in the money supply (M↑) designed to leave real GDP the same on each of the following economic variables? For each, you should write one of the following responses: Up (U), Down (D), orSame (S) The real interest rate (r) Investment (I) Consumption (C) The price level (P) Budget deficit (G – T)
- Starting from general equilibrium, what would be the long-run effects of a simultaneous reduction in government purchases (G↓) and increase in the money supply (M↑) designed to leave real GDP the same on each of the following economic variables? For each, you should write one of the following responses: Up (U), Down (D), orSame (S) The real interest rate (r) Investment (I) Consumption (C) The price level (P) Budget deficit (G – T) Future standard of living (i.e., future per capita consumption)An economy is described by the following equations: C= 60 +0.75 (Y - T) IP= 100 G= 150 NX= 30 T= 180 Y*= 760 The multiplier in this economy is 4. a. Find a numerical equation relating planned aggregate expenditure to output. Instructions: Enter your response for mpc rounded to two decimal places. PAE= b. Construct a table to find the value of short-run equilibrium output. Instructions: If you are entering any negative numbers be sure to include a negative sign (-) in front of those numbers. Planned aggregate Output Y expenditure (PAE) Y - PAE 620 720 820 920 1,020 Short-run equilibrium output is c. By how much would government purchases have to change in order to eliminate any output gap? By how much would taxes have to change? In order to eliminate any output gap, government purchases would have to be reduced by In order to eliminate any output gap, taxes would have to be increased by d. If Y*=856, then by how much would government purchases have to change in order to eliminate any…Suppose that the price level is constant and that investment decreases sharply. How would you show this decrease in the aggregate expenditures model? What would be the outcome for real GDP? How would you show this fall in investment in the aggregate demand–aggregate supply model, assuming the economy is operating in what, in effect, is a horizontal section of the aggregate supply curve?