In the Keynesian cross model, assume that the consumption function is given by C=$170+0.7(Y-T) Planned investment is $100; government purchases and taxes are both $100.
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- 1.Draw the graph of the Keynesian cross model as a comparison of planned and realized expenditures. What is the intercept of the planned expenditure line? What is its slope? If government expenditures would be a positive function of output, how would the Keynesian cross change?11. In the Keynesian cross model, assume that the consumption function is given by: C = 140 +.75(Y-T); Planned investment is 300; government purchases are 400 and taxes are 500. (optional) a. Find the equation of planned expenditure as a function of income. Graph planned expenditure as a function of income. Make sure to label all curves and axes. b. What is the equilibrium level of income? Show your work. c. If government purchases increase to 450, what is the new equilibrium income? What is the multiplier for government purchases? Show your work. d. What level of government purchases is needed to achieve an income of 3,400? (Taxes remain at 500.) Show your work. e. What level of taxes is needed to achieve an income of 3,400? (Government purchases remain at 400.) Show your work.QUESTION 3 Give a hypothetical numerical example to show the relationship between the marginal propensity to consume (MPC) and the multiplier (m)? a. b. Considering both the simple Keynesian and the aggregate demand-supply frameworks, if households as a group experience a decrease in wealth at a given price level, what happen to Total Expenditure (TE), Aggreggate Demand (AD) and Real GDP. Illustrate and explain the change using a suitable graph.
- n 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?19. Which of the following statements concerning Keynesian analysis are true? Select one: a. Keynes's analysis started with the recognition that the total quantity demanded of an economy's output was the sum of three types of spending: consumer expenditure, planned investment spending, and government spending. Ob. Keynes recognized that equilibrium would occur in the economy when planned expenditure equals Actual expenditure O c All of the above are true. d. Keynes's analysis involves explaining why aggregate output is at a certain level by understanding what factors affect each component of aggregate demand and how the sum of these components could add up to an output smaller or greater than the economy is capable of producingn the Keynesian cross model, assume that the consumption function is given by C = 110 + 0.75(Y - T). Planned investment is 300; government purchases is 350. Assume a balanced budget. a. Graph planned expenditure as a function of income.b. What is the equilibrium level of income?c. If government purchases increase to 400, what is the new equilibrium income? What is the multiplier for government purchases? Solve D and Ed. What level of government purchases is needed to achieve an income of 2,200? (Taxes remain unchanged.)e. What level of taxes is needed to achieve an income of 2,200? (Government purchases remain at 350.)
- 9. In the simple Keynesian cross model of a closed economy without taxes, if the initial equilibrium level of income (Y) is $300 billion, and the marginal propensity to Consume (MPC) is 0.75. What would be the new equilibrium level of income (Y) if government expenditures (G) increase by 20 billion? $320 billion b. $380 billion c. $220 billion d. $520 billion e. $326 billion16. Consider a closed economy with demand for goods as follows: yd = C +I+ G C = 200 + 0.80(Y – T) I = 600 G = 1000 T = 1000 a. What is "autonomous expenditure" for this economy? b. Graph this economy's (planned) aggregate expenditure function. Be sure to give the coordinates of at least 2 distinct points in your graph. c. According to the Keynesian Cross model of income determination, what would be the short run equilibrium value of real aggregate income (Y) for this economy? d. If government purchases (G) were to increase to 1,200, what would the new short run equilibrium value of income be? etv MacBook Air 80 888 DII F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 # $ % & ) + 3 4 6 7 8 9 %3D de E Y U P { } [ D F G H J K L + I| ....A. Suppose you are given the following fixed-price Keynesian model: C=280 + 0.9Y. I-200 G=100 X3D200 M= 100 + 0.1Y. T= 100 a. Find the aggregate expenditure function. b. Find the equilibrium level of real GDP. C. What is the spending multiolier in this model? Tax multiplier? d. Show that leakages injections at equilibrium. e. If taxes increase by $100, what is the new equilibrium level of GDP? E. Show your answers to b) and e) graphically.
- 7. Suppose in the Simple Keynesian model that the marginal propensity to consume is b = 0.75. If both taxes, T, and government spending, G, are increased by $400, then equilibrium Y O decreases by $1,200. increases by $1.600. increases by $400. neither increases nor decreases. none of the other options.4. The foreign sector is added to the Keynesian national income model and there is a positive marginal propensity to import. X is the export and Z (in capital letter) is the import and C (in capital letter) is the consumption. Y = C+1+G+ (X – Z) C = c+ bY Z = z + mY Find: (i) The equilibrium level of income, consumption and import (ii) Specify the ranges of b and m and give the economics interpretations (iii) Identify the endogenous and exogenous variables from the model1. If a simple model of the macro economy is made in which the Marginal Propensity to spend is 0.65, a) What is the multiplier? b) By how much would the equilibrium national income change if autonomous consumption falls by 125?