[考古] 總體經濟學(一)/陳盛通/97上第二次小考
[開課學院]:商學院 (ex:金融學院,商學院,理工學院,資電學院,建設學院,文學院...)
[開課系所]:財稅系 (ex:中文系,外文系,電機系,財稅系..)
[課程名稱]:總體經濟學(一)
[老師名稱]:陳盛通 老師
[開課學期]:97 上學期
[類型]:第二次小考 ex:(第n次)小考/98-2期中考/98-2期末考
第一部份 單一選擇題(每題4分，共60分)
1.若消費者可以完全估測未來的稅賦情形，假設今年的政府減稅損失將由增加未來的稅收
來抵銷，請問此效果會造成?
(A)投資曲線與儲蓄曲線皆不變
(B)儲蓄曲線與投資曲線皆向右偏移
(C)儲蓄曲線向左偏移，但投資曲線不變
(D)儲蓄曲線不變，但是向右偏移
2.當個人未來有一筆財富增加時，請問其當期消費與儲蓄如何變化?
(A)消費與儲蓄皆增加
(B)消費增加，儲蓄減少
(C)消費減少，儲蓄增加
(D)消費與儲蓄減少
3.The substitution effect of a decrease in real interest rates is to cause a
consumer to
(A)increase future consumption and decrease current consumption.
(B)decrease future consumption and increase current consumption.
(C)increase current consumption and increase saving.
(D)decrease current consumption and increase saving.
4.At the start of the year,your firm's capital stock equaled $100 million,and
the end of the year it equaled $105 million.The average depreciation rate on
your capital stock is 20%. Gross investment during the year equaled
(A)$1 million. (B)$5 million. (C)$7 million. (D)$25 million.
5.假設政府將實施新的環境污染法規限制，此時廠商預期明年的邊際資本產出將會減少，
請問此時實質利率將會＿＿＿，而儲蓄將會＿＿＿
(A)下降；減少 (B)下降；增加 (C)上升；增加 (D)上升；減少
6.Calculate the user cost of capital of a machine that costs $100,000 and
depreciates at a rate of 25%,when the nominal interest rate is 4% and the
expected inflation rate is 1%.
(A)$3,000 (B)$25,000 (C)$28,000 (D)$29,000
7.假設你的公司是在均衡狀態時，其資本存量在其想要的水準，此時一個恆常性的利率降
低，請問對你期望的資本存量有何影響?
(A)讓期望的資本存量上升，因為未來的資本邊際生產力提高。
(B)讓期望的資本存量下降，因為未來的資本邊際生產力下降。
(C)讓期望的資本存量下降，因為資本的使用者成本現在較高。
(D)讓期望的資本存量上升，因為資本的使用者成本現在較低。
8.David consumes 200 in the current period and 330 in the future period.The
real interest rate is 10% per period.David's present value of lifetime
consumption is
(A)500. (B)530. (C)550. (D)563.
9.A firm should invest more if Tobin's q
(A)equals zero.
(B)is less than one.
(C)equals one.
(D)is more than one.
10.下列何種方法為中央銀行最常用來減少貨幣供給?
(A)提高稅收
(B)賣出債券給社會大眾
(C)從政府部門買進債券
(D)從社會大眾買進債券
11.Suppose the real money demand function is M^d/P =2400 +0.2Y -10,000(r+πe).
Assume M =4000 , P =2.0 , πe =.03 , and Y =5000.The real interest rate
that clears the market is
(A)3% (B)6% (C)11% (D)14%
12.Money demand is given by M^d/P =1000 +0.2Y -1000i. Given that P =200,
Y =2000 ,and i =0.1 ,velocity is equal to
(A)0.65 (B)0.75 (C)1.33 (D)1.54
13.東歐國家之間在1990年代雖然已經市場化，但是卻面臨強大的通貨膨脹壓力，請問造
成此國家間通貨膨脹差異的主要原因為何?
(A)各國生產力不同
(B)實質所得成長不同
(C)實質貨幣需求成長率不同
(D)名目貨幣供給成長率不同
14.If the money demand doubles while the nominal money supply is unchanged,
what happen to the price level?
(A)The price level increase by a factor of four.
(B)The price level double.
(C)The price level is unchanged.
(D)The price level fall by one-half.
15.If the nominal money supply grows 6%, real income rise 2%,and the inflation
rate is 5%,then the income elasticity of money demand is
（Hint:π=(ΔM/M)-η(ΔY/Y)）
(A)0.5
(B)0.75
(C)1.0
(D)1.5
Ans:(1~5)ABBDA (6~10)CDADB (11~15)CDDDA
第二部份 計算題(共60分)
1.An economy has full-employment output of 5000. Government purchase are 1000.
Desired consumption and desired investment are given by
C^d =3000 -2000r+ 0.10Y I^d =1000 -4000r
where Y is output and r is the expected real interest rate.
(a)Find the real interest rate that clears the goods market. Assume that
that output equals full-employment output.
（Hint:S^d =Y -C^d -G ， S^d = I^d ）(5分)
(b)Calculate the amount of saving,investment,and consumption in equilibrium.
(10分)
(c)If a shock to wealth causes desired consumption to decline by 200(so that
the new equation for desired consumption is C^d = 2800 -2000r +0.10Y),find
the equilibrium real interest rate, saving, investment,and consumption.
Ans:(a)0.083 (b)S^d=666.67 ,I^d=666.67 ,C^d=3,333.33
(c)r=0.05 ,S^d=800 ,I^d=800 ,C^d=3200
2.假設貨幣需求函數給定如下:M^d/P =640+ 0.1Y -5000(r+πe)，且中央銀行根據所得與
通貨膨脹決定名目貨幣供給，所以貨幣供給函數如下:M^s =1000+ 0.1Y -4000π
(a)若預期通貨膨脹率π^e =π=0.03, Y=1000,且r =0.02 ,請你算出物價水準為何?
（Hint:P =M^s/L(Y,r+π^e) (5分)
(b)若只有通貨膨脹率π上升至0.04，而π^e與其他(a)題的條件不變，請你算出物價水
準為何? (5分)
(c)若只有預期通貨膨脹率π^e上升至0.04，而π與其他(a)題的條件不變，請你算出物
價水準為何? (5分)
(d)若只有實質利率r上升至0.04，而π與其他(a)題的條件不變，請你算出物價水準為ꘊ (5分)
Ans:(a)P=2 (b)P=1.92 (c)P=2.23 (d)P=2.51
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