经济学功课一问2.Youaregiventhefollowinginformationaboutbehaviorinaneconomy:C=80+0.75YdYd=YI=50a.Derivethealgebraicexpression代数式forAE.b.Whatisthemarginalpropensitytoconsume?Interpret解释youranswer.c.Whati

Question

经济学功课一问
2.You are given the following information about behavior in an economy:
C = 80 + 0.75Yd Yd = Y I = 50
a.Derive the algebraic expression代数式for AE.
b.What is the marginal propensity to consume?Interpret解释your answer.
c.What is the equilibrium output?
d.If investment increased from 50 to 55,what is the new equilibrium level of
3.If real GDP and nominal GDP both rise by 10% and 15% respectively from one year to the next what can we say is true about production and inflation between these two years and why?
4.Suppose that there is an economy with
C=100+0.8Yd I=50 T=100 G=40
A) Calculate the government expenditure multiplier and tax multiplier in this economy.
B) What is the equilibrium level of output?
C) At the equilibrium level of output in B),what are the values of consumption and savings?
D) If the government wants to increase the national income to 800,calculate how much the government spending should be changed.
E) Suppose the government adopts a proportional tax system and wants to charge 25% as tax rate,redo question D) and compare the result with the answer in D).

Answer 1

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