If an economy is to the left of the equilibrium level of GDP on the Keynesian cross diagram, then aggregate output is than aggregate demand, and firms will inventories so that equilibrium is reestablished. their investment in greater; increase less; increase greater: decrease O less: decrease
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- Consider a closed economy to which the Keynesian-cross analysis applies. Consumption is given by the equation C = 200 + 2/3(Y – T). Planned investment is 300, as are government spending and taxes. What happens to unplanned inventory investment? Should equilibrium Y be higher or lower than 1,500?According to the Keynesian cross model if the marginal propensity to consume is 2/3, cut in taxes of 120 Billion increases equilibrium income by a) 160 Billion b) 180 Billion C) 240 Billion d) 360 BillionThe Simple Keynesian Model (i.e., the income-expenditure model). Assume: C = 150 + 0.9 DI I = 50 DI = C + I in equilibrium for a 2-sector model (Note: DI = C in a 1-sector model) Define the term, consumption. What is the value of “autonomous” consumption (also called “a” or the vertical intercept)? What is the value of the slope (also referred to as “b”) of the consumption function? There’s another name for the slope of the consumption function. What is it? What is the value of DI when the model is in equilibrium? What is the value of the “oversimplified” expenditure multiplier? If full-employment means that DI = $5000, then how much should autonomous consumption (or autonomous investment) increase to achieve full-employment? (Hint: Use the multiplier process formula.) Draw a graph of this 2-sector model. Indicate equilibrium DI, full-employment DI, as well as…
- In the Keynesian cross model, assume that the consumption function is given by C = 100 + 0.75(Y - T). If government spending increases by AG = 100, what is the increase in output? How does your answer change when the spending increase is financed by an equal increase in taxes?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 labor productivity increases while autonomus expenditures and the marginal propensity to consume remain unchanged, what will happen to the level of employment? a. increseas b. can't say for sure c. decreases d. stays the sameIn the Keynesian macroeconomic model, the equation for the savings function is given as: S = -420 + 1/4Y. Based on this information, which of the following statements is correct? (1) The marginal propensity to consume is 1/4;(2) The marginal propensity to save is -420; (3) At an income level of R1 000, the value of savings is 250;(4) At an income level of R1 000, the level of savings is -170.
- In an economy, marginal propensity to consume (MPC) is 0.75 where Keynesian model works. Now, if government increases both its expenditure and taxes by 1000, then Income increases by 4000; Income increases by 3000; Income increases by 1000; Income do not change?Suppose the marginal propensity to consume is 0.6. Use the Keynesian Cross model to predict the impact on equilibrium income of each of the following policies. State the direction of the change and give a formula for the size of the impact. a. an increase in government purchases of $100billion b. an increase in taxes of $100 billion c. a $100 billion increase in both government purchases and taxes?In 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.d. What level of government purchases is neededto achieve an income of 1,600?
- In the Keynesian cross model, assume that the consumption function is given by C = 20 + 0.8(Y- T). Planned investment is 200; government purchases and taxes are both 400. There is no foreign trade. An economist has claimed that the full employment level of output is 2,400. How much should the government expenditure or taxes rise or fall to achieve full employment?In a Keynesian model, why would a $100 million increase in government expenditure on goodsand services have a greater impact on aggregate demand than a $100 million reduction in taxrevenue?A Consumers spend only part of any extra disposable income.B Government expenditure does not create wealth.C The marginal tax rate affects the value of the multiplier.D The multiplier does not apply to consumer expenditure.) Given the following simple Keynesian Model: Y = C + I + G + X-M, where Consumption schedule is given as C= 100 +0.75Y Investment (I) = 50 Government (G) = 100 and Net Export (X-M) = 20 i. Calculate the Equlibrium Level of Income [4 Marks] ii. Calculate the size of Consumption at the Equilibrium Level [2 Marks] iii. Calculate the value of the Government Multiplier [2 Marks] iv. Assume Investment (I) changes by 50; calculate the new equilibrium level of Income