⑴ 曼昆宏觀經濟學的題目
促進經濟增長的政策之一：自由貿易。
⑵ 一道宏觀經濟學題目（來自曼昆版宏經第七版，網上找不到答案）
a、人均生產函數: f(k)=A(K/L)^a=Ak^a
b、穩態收入
基本的經濟關系：儲蓄與收入——S＝sY＝sF(K,L)
資本存量與折舊和投資（儲蓄）——dK/dt＝I-折舊率＊K
＝S-折舊率＊K
穩態的條件：人均資本增長率＝0
令f（k）＝y 對人均生產函數兩邊取ln，再對時間求導，可得
(dy/dt)/y=(dA/dt)/A+a*(dk/dt)/k
經濟的穩定條件為(dk/dt)/k=0
因為(dk/dt)/k=［d(K/L)/dt]/(K/L)={[dK/dt*L-dL/dt*K]/L^2}*(L/K)=(dK/dt)/K-(dL/dt)/L
其中(dK/dt)/K＝S／K-折舊率＝sy/k-折舊率。表示資本的增長率
(dL/dt)/L＝人口的增長率
利用穩定條件，可得
sy／k -折舊率－人口增長率＝0
將y=f(k)=Ak^a，代入上式，可得：
s*A*k^(a-1)-折舊率-人口增長率＝0
解出k=［(折舊率＋人口增長率）／s］^[(1/(a-1)]
所以穩態的人均產出為y＝f(k)=A*k^a=A*［(折舊率＋人口增長率）／s］^[(a/(a-1)]
富國的人均產出為y(R)=A(R)*[(5%+1%)/33%]^[a/(1-a)]
窮國的人均產出為y(P)=A(P)*[(5%+3%)/10%]^[a/(1-a)]
由此可以計算人均收入的比值（人均收入就是人均產出）＝［A(R)/A(P)]*(5/22)^[a/(a-1)]
c、將a＝1/3代入人均產出公式可計算具體的比值（仍然是A的函數）=［A(R)/A(P)]*2.1
d、可以令兩國的A相等，看a的不同取值能否使人均產出比值達到16，測試後會發現這需要a>0.65。因此產出的差距可能在於技術水平A，因為大家的技術進步速度相同，所以技術的初始水平可能是產出差距的主要原因
⑶ 有關曼昆宏觀經濟學原理的選擇題問題
凈出口=國民儲蓄-國內投資（NX=S-I）
原因是：
∵Y=C+I+G+NX
∴Y-C-G=I+NX
∵S=Y-C-G
∴S=I+NX
∴NX=S-I
所以當儲蓄增加，凈出口也會增加
凈資本流出(net capital outflow)國內儲蓄和國內投資之間的差額 （S-I)
∵Y=C+I+G+NX
∴Y-C-G=I+NX
∵S=Y-C-G; NX=NCO
∴S=I+NCO
∴NCO=S-I
所以當儲蓄增加，資本凈流出也會增加
但是答案無增加，只能選不變！
⑷ 曼昆宏觀經濟學
具體問的是什麼？？？曼昆的書都很好啊！！！容易讀懂。。。貼近生活。。。
⑸ 曼昆宏觀經濟學中的一題
a. When U.S. mutual funds become more interested in investing in Canada, Canadian net capital outflow declines as the U.S. mutual funds make portfolio investments in Canadian stocks and bonds. The demand for loanable funds shifts to the left and the net capital outflow curve shifts to the left, as shown in Figure 11. As the figure shows, the real interest rate declines, thus recing Canada』s private saving, but increasing Canada』s domestic investment. In equilibrium, Canadian net capital outflow declines.
b. Since Canada's domestic investment increases, in the long run, Canada's capital stock will increase.
c. With a higher capital stock, Canadian workers will be more proctive (the value of their marginal proct will increase) so wages will rise. Thus Canadian workers will be better off.
d. The shift of investment into Canada means increased U.S. net capital outflow. As a result, the U.S. real interest rises, leading to less domestic investment, which in the long run reces the U.S. capital stock, lowers the value of marginal proct of U.S. workers, and therefore decreases the wages of U.S. workers. The impact on U.S. citizens would be different from the impact on U.S. workers because some U.S. citizens own capital that now earns a higher real interest rate.
答案我只有英文的 發好了
⑹ 曼昆宏觀經濟學試題求答案
曼昆答案我已經上傳！