Answer:
Money multiplier, MM = (1 + Currency-deposit ratio) / (Currency-deposit ratio + Excess reserve ratio + Required Reserve ratio)
(a) Initially,
MM = (1 + 0.25) / (0.25 + 0.05 + 0.10) = 1.25 / 0.4 = 3.125
(b) Currency-deposit ratio = 0.3
MM = (1 + 0.3) / (0.3 + 0.05 + 0.1) = 1.3 / 0.45 = 2.89
(c) Excess reserve ratio rises to which number? MM cannot be computed unless exact number is provided.