Economics In the small country of Lavinia; the GDP which means aggreagate supply is $ 120 billion, the MPS is 0.25, investment is $ 10 billion, and G is $ 10 billion. a) Is there an equilibrium in that economy? b) If there is a gap between agg. Supply and agg. Demand (e.g if AS> AD); what is the required increase in G if the Keynesian multiplier analysis is correct.
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- Suppose Congress decides to reduce the budget deficit by cutting government spending. a. Use the Keynesian-cross model to illustrate graphically the impact of a reduction ingovernment purchases on the equilibrium level of income. Be sure to label: i) the axes;ii) the curves; iii) the initial equilibrium values; iv) the direction the curve shifts; andv) the terminal equilibrium values. b. Explain what happens to equilibrium income as a result of the cut in governmentspending.H0w d0es price stickiness phen0men0n lead t0 an increase in the sh0rt run level 0f 0utput acc0rding t0 the Keynesians?H0w w0uld y0u define price stickiness ?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. increases
- "H0w w0uld y0u define price stickiness ? H0w d0es this phen0men0n lead t0 an increase in the sh0rt run level 0f 0utput acc0rding t0 the Keynesians?" C0mmentAssuming there is no trade, if the Marginal Propensity to Consume is 0.90 and the gov increase spend1ng by $5 bil1ion, how much will output rise?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?
- Consider a one-period economy which experiences the destruction of some of the nation’s capital stock (say through a hurricane is de- stroyed). How should this effect equilibrium, consumption, output and labor supply? Now, let’s say the government tries to offset some of the declines in capital on output and hours worked by increasing govern- ment spending. What is the likely outcome of this policy intervention in terms of consumption? In our model, the affects of changes on wages are ambiguous because the income and substitution effects move in opposite directions. How do (many) macroeconomists deal with this ambiguity in terms of study- ing business cycle? How do economists resolve this ambiguity when studying long term economic development? Consider an economy with a straight line PPF. Show how an increase in government spending paid for by an increase in lump sum labor taxes affects outcomes. Do the same for an increase in government spending financed by a proportional income…An economic theory regarding the effect of an economic variable on another when all other factors stay constant is called _____. laissez faire Keynesian e pluribus unum Ceteris ParibusLIBR The Aggregate Expenditure or Keynesian macroeconomics model is based upon the theory that the level of GDP in the economy is determined by the level of aggregate spending. True False
- 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…option C is incorrect 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. O An increase in taxes shifts the planned expenditure function downward. The change in income is given by AY= AY=. O An increase in taxes shifts the planned expenditure function upward. The change in income is given by -MPC 1-MPC ΔΥ= -MPC 1-MPC AY= O An increase in taxes shifts the planned expenditure function inward. The change in income is given by XAT 1 1-MPC XAT 1 1-MPC O The direction of the shift is undetermined without knowing the slope of the PE function. The change in income is given by XAT XATUse 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