a)
reserve ratio (r) the ratio of total deposits that the banks hold as reserves= 1/3
currency deposit ratio is the money that people want to hold as currency = 1/3
money multiplier = (k + 1)/(k + r) = (1/3 +1)/(1/3+ 1/3) = (4/3)/(2/3) = 2
Money supply(M) = m *Monetary Base(MB) = 2*1000 = $2000.
b) k’ = ½
new money multiplier (m’) = (k’+1)/(k’+r) = (½+1)/(1/2+1/3) = (3/2)/(5/6) = 1.8
new money spply(M’) = m’*MB = 1.8*1000 = $1800
c) Because the money supply has reduced in the face of panic, the central bank will have to increase money supply This will involve buying of government bonds in exchange of money.
M = m*MB
2000 = 1.8*(MB(=1000)+ dMB)
1000 +dMB = 2000/1.8
dMB = 2000/1.8 – 1000
dMB = 1111.11 – 1000 = 111.11
So the central bank need to transact $111.11
d) r’ = ½
k’ = ½
m’’ = (1/2+1)/(1/2+1/2) = 3/2 = 1.5
The money multiplier falls because when more money is kept as reserves the money multiplier strength weakens.
New money Supply (M’’) = m’’*$1000 = 1.5*1000 = $1500
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