有關存款準備率 - 經濟

以下為題目

a bank with $1 billion in deposits holds $70 million in cash,

$80 million on deposit with the Fed, and owns $100 million in

goverment securities. If a reduction in the required reserve

tatio generates excess reserves of $30 million, and prior to the

change the band had no excess reserves, then the intial required

reserve ratio was ___ ande the new required reserve ratio is____

(A)15%;10% (B)15%;12% (C)25%;22% (D)25%;20% (E)25%;12%

希望有高手可以幫忙

想好久 都解不出來

可以順便問一下....題目上若是寫"新成長理論"

是指"內生成長理論"還是另有所指呢?

謝謝

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