小斯 asked in 商業與財經個人理財 · 1 decade ago

緊急!!!總體經濟學的幾個問題??!!!

明天就要期中考嚕 可是有些問題一直搞不懂 希望有經濟學高手可以幫我解答 請能盡量詳答就詳答 拜託各位嚕 20點送給您~

1.

How is the amount of reserves banks hold related to the amount of money the banking system creates?

2.Suppose that the reserve requirement for checking deposits is 10 percent and that banks do not hold any excess reserves.

(a)If the central bank sells $1 million of government bonds, what is the effect on the economy’s reserves and money supply?

(b)Now suppose the central bank lowers the reserve requirement to 5 percent, but banks choose to hold another 5 percent of deposits as excess reserves. What is the overall change in the money multiplier and the money supply as a result of these actions?

(a)選項答案:economy's reserve會下降;money supply會下降 我不太懂為什麼?

(b)選項答案:money supply正解為不變 我認為是上升 哪裡弄錯嚕? 貨幣乘數為正解不變 我認為是變大 哪裡弄錯嚕?

3.當股市熱絡時,M1與M2的數量會產生何種變化?

答案是M1增加 M2變小 為什麼???!! 我認為M2不會改變呀? 哪裡弄錯嚕?

4.The inflation rate is 10 percent, and the central bank is considering slowing the rate of money growth to reduce inflation to 5 percent. Economist Milton believes that expectations of inflation change quickly in response to new policies, whereas economist James believes that expectations are very sluggish. Which economist is more likely to favor the proposed change in monetary policy? Why?

5.(Optional) Given the unpopularity of inflation, why don’t elected leaders always support efforts to reduce inflation? Many economists believe that countries can reduce the cost of disinflation by letting their central banks make decisions about monetary policy without interference from politicians. Why might this be so?

6.(Optional) Suppose Federal Reserve policymakers accept the theory of the short-run Phillips curve and the natural-rate hypothesis and want to keep unemployment close to its natural rate. Unfortunately, because the natural rate of unemployment can change over time, they aren’t certain about the value of the natural rate. What macroeconomic variables do you think they should look at when conducting monetary policy?

1 Answer

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  • 1 decade ago
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    因為筆者很英文很吃力,所以只幫你回答二題:

    2.Suppose that the reserve requirement for checking deposits is 10 percent and that banks do not hold any excess reserves.

    (a)If the central bank sells $1 million of government bonds, what is the effect on the economy’s reserves and money supply?

    (b)Now suppose the central bank lowers the reserve requirement to 5 percent, but banks choose to hold another 5 percent of deposits as excess reserves. What is the overall change in the money multiplier and the money supply as a result of these actions?

    (a)選項答案:economy's reserve會下降;money supply會下降 我不太懂為什麼?

    央行賣了100萬政府債券,意思是民間花了100萬買債券,也就是央行收回去100萬元,市場金額少了100萬元,貨幣變少了當然=貨幣供給下降呀!而市場準備率不變下,當市場總貨幣變少,市場的經濟準備金也會跟著下降呀!

    假設原市場有1000萬,準備率為10%,即準備金為100萬,現在央行賣債回收去100萬,(money supply會下降)市場貨幣變900萬,準備率為10%,(economy's reserve會下降)即準備金變為90萬!

    (b)選項答案:money supply正解為不變 我認為是上升 哪裡弄錯嚕? 貨幣乘數為正解不變 我認為是變大 哪裡弄錯嚕?

    答:假設通貨淨額C=0時,貨幣乘數=1/準備率R,而央行降低5%存款準備率,銀行卻增加5%的超額準備,即總準備率+5%-5%=沒變化,所以貨幣乘數沒變!

    你可以假設本來100元要留10%存款準備,銀行自已本來0%超額準備,所以可放款(貨幣供給)金額=100-10-0=90;現在存款準備變5%,銀行超備變5%結果100-5-5=90)還是只能放款90不變!

    3.當股市熱絡時,M1與M2的數量會產生何種變化?

    答案是M1增加 M2變小 為什麼???!! 我認為M2不會改變呀? 哪裡弄錯嚕?

    筆者也認為:你是對的

    A股票好時,大家都跑去買賣股票,

    B即大家都把M2的定存或NCD解約(定存解約"準貨幣"變少=M1增加)變M1的現金或存款(活期性),這皆段可明顯知道M1+,M2因該還是不變(變少的是準貨幣不是M2=M1+準貨幣)

    C再買賣股票!(只是買賣方不同,就是現金股票只是轉手而已,但這個階段M1總量不會改變)

    即M1(現金,活存,活儲)變少,M2(

    2010-06-17 21:34:04 補充:

    最後一句話是誤貼---------[ 即M1(現金,活存,活儲)變少,M2( ] 打錯的!

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