ارجو المساعدة ضروووووري

[محاسبة متفائلة 1989]

the following equation describe an economy (think of C,G,I ,etc,as being measured in billion and i as as a percentage , a 5 percent interest rate implies i=5

c=.8(1-t)y

t=0,25

I=900-50i

G'=800

l=0.25y-62,5i

M'/P'=500

A- what is the equation that describethe IS curve

b-what is the general definion of IS CURVE

C-what is the equation that describethe LM curve

what is the general definion of LM CURVE e-WHAT is the equalibrium level of income and interest rate

f-describe in words the condition that are satisfied at the intersection of IS NAD LM curves , and explain why is an equalibrium

السؤال التاني

suppose that the money supply instead of being constant increased (slightly)with the interest rate

a-how would this change affect the construction of LM curve

b-could you see any reason why the Fed might follow apolicy of increasing the money supply along with the interest rate