consumption C = 50 + 0.75 (Y - T) Investment I = 150 - 10r Money demand L(Y,r) = Y - 50r governmment spending G = 250 taxes T = 200 money supply M = 750 QUESTION 1 - refer to the information in the table For the Simple Keynesian/Keynesian cross model, for which: r = 0 (i) use the relevant set of equations to solve for equilibrium level of income. What is the equilibrium level of consumption? Graphically illustrate and explain (ii) what happens if planned investment exceeds 150? Is less than 150? Illustrate and explain
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- Explain how to derive a total expenditures (TE) curve.The Life-Cycle/Permanent Income Model of Consumption makes a different prediction from the Keynesian Model, about how Consumption reacts to an increase in current income. Which of the following is the best description of the difference? O In the Keynesian Model, consumers will increasktheir spending by the mpc times the increase in income. In the Life-Cycle/Permanent Income Model, consumers will not increase their spending by much unless they believe that the increase in their income is permanent. O In the Life-Cycle/Permanent Income Model, consumers will increase their spending by the mpc times the increase in income. In the Keynesian Model, consumers will only increase their spending if they believe that the increase in their income is temporary. O In the Keynesian Model, consumers will increase their spending by the mpc times the increase in income. In the Life-Cycle/Permanent Income Model, consumers will only increase their spending if they believe that the increase in their income…We found that for every $1 increase in G there is a multiplied impact on output with, in the most 1 basic model, a multiplier of A study by economists at the New York Fed conducted 1- MPC during the COVID-19 recession found that "as of the end of June 2020, a relatively small share of stimulus payments-ljust] 29 percent-was used for consumption." What is the G multiplier based on that estimated MPC and the formula from the basic model?
- Consider a keynesian macromodel Y=(C0+G+I) / (1-c) where C0 is autonomus consumption, G is government consumption expenditure, I is investment expenditure, c is the marginal propensity to consume. In this model, if lthere is an increse in both labor productivity and the marginal propensity to consume while autonomus expenditures remain unchanged, what will happen to the level of employment? a. can't say for sure b. decreses c. stays the same d. increaseslevels of in come The equilibrium levels of income Y consumptiion C, disposable income Yo and a three- Sector macroeconomic model Satis.fy the Structural equatione taxation T, for %3D C + In t Go C=atbld (ocbel, a>o) Y-T TE tY + To o >o) ☺ Express Ax=d Ü Using Cramer's rule, find the equilibrium levels of consumption (^), dis poseble in come CYo and Taxation (Tr) this System ln the formGiven the fllowing simple ky Given the fellawing simple keynesian income medels; C = 200+ 0-TY O Express the model in matrix form. O Using metrix dgebra, find ite equilibrium stalve of c Y and I 9 Suppose that autonomous invertment increases from 7S to 120, ohat is the resultant change in the equilibrium values of C4 and I"
- . Suppose the United States economy is repre- sented by the following equations: Z = C + I + G, C = 500 + 0.75YD, T = 600, I = 300, YD = Y − T , G = 2000 Given the above variables, calculate the equilibrium level of output. assume that government spending decreases from 2000 to 1900. What is the new equilibrium level of output? How much does income change as a result of this event? What is the multiplier for this economy?Autonomous Consumption R535mMarginal propensity to consume is 0.75Investment Spending R322mGovernment Spending R300mImports R175m + 0.08YExports R283mTaxes = 0.1YFull employment level of output is R3 483m Calculate the value of induced imports in thiseconomy, given the equilibrium level of output.Use the Keynesian cross to predict the impacton equilibrium GDP of the following. In eachcase, state the direction of the change and give aformula for the size of the impact.a. An increase in government purchasesb. An increase in taxesc. Equal-sized increases in both governmentpurchases and taxes
- Given the following model of an Economy as follows:- (10 marks) C = 50 + 0.7 Yd (Yd = Y-T) (Consumption & Expend) I = 100 (Investment Expend) X = 20 (Exports ) M = 10 – 0.27 (Imports) T=25 interepret the consumption Function i) Determine Equilibrium level of National Income ii) Consumption level at Equilibrium level of Income iii) Total import at equilibrium Incomen the Keynesian cross, assume that the consumption function is given byC = 200 + 0.75 (Y - T).Planned investment is 100; government purchasesand taxes are both 100.a. Graph planned expenditure as a function ofincome.b. What is the equilibrium level of income?c. If government purchases increase to 125, whatis the new equilibrium income?d. What level of government purchases is neededto achieve an income of 1,600?Consider the following Keynesian Cross. The AE function decreased from AEO to AE1 due to a decrease in the autonomous consumption Cao to Ca1. What will happen to the simple multiplier effect? AE OR Ob Oe Od 45 AE,a,Y, CA AE,a,Y, Ca The simple multiplier will increase Not enough information to answer the question The simple multiplier will become inverse The simple multiplier will stay the same The simple multiplier will decrease