In: Economics
(goods market and money market)
Consider'the following short-run model of a close economy
Y=150
C=40+0.5(Y-T)
1=30-5r
G=25,T=20
a.Find the real interest rate that produces equilibrium in the
goods market(For
example,if real interest rate is 4%,thenr=4).Then use a
saving-investment
diagram to show how the equilibrium interest rate is predicted to
change if
President Trump builds"the wall"between Mexico and the
U.S.(4%)
b.Suppose that the inflation rate equals 4%.The money demand
function is given by
M=Y-10i
where i is the nominal interest rate in percentage term(For
example,if nominal
interest rate is 3%,theni=3).Find the money supply at the
equilibrium.How does
the equilibrium change if the risk of non-money asset goes
down?(4%)
c.Assume that the velocity of money is constant and real GDP
is
growing at 1%.If
the Fed wishes to eep the price level constant,how much(in
dollars)do they need
to increase the money supply?(4%)