⑴ 曼昆宏观经济学的题目
促进经济增长的政策之一：自由贸易。
⑵ 一道宏观经济学题目（来自曼昆版宏经第七版，网上找不到答案）
a、人均生产函数: f(k)=A(K/L)^a=Ak^a
b、稳态收入
基本的经济关系：储蓄与收入——S＝sY＝sF(K,L)
资本存量与折旧和投资（储蓄）——dK/dt＝I-折旧率＊K
＝S-折旧率＊K
稳态的条件：人均资本增长率＝0
令f（k）＝y 对人均生产函数两边取ln，再对时间求导，可得
(dy/dt)/y=(dA/dt)/A+a*(dk/dt)/k
经济的稳定条件为(dk/dt)/k=0
因为(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-折旧率＝sy/k-折旧率。表示资本的增长率
(dL/dt)/L＝人口的增长率
利用稳定条件，可得
sy／k -折旧率－人口增长率＝0
将y=f(k)=Ak^a，代入上式，可得：
s*A*k^(a-1)-折旧率-人口增长率＝0
解出k=［(折旧率＋人口增长率）／s］^[(1/(a-1)]
所以稳态的人均产出为y＝f(k)=A*k^a=A*［(折旧率＋人口增长率）／s］^[(a/(a-1)]
富国的人均产出为y(R)=A(R)*[(5%+1%)/33%]^[a/(1-a)]
穷国的人均产出为y(P)=A(P)*[(5%+3%)/10%]^[a/(1-a)]
由此可以计算人均收入的比值（人均收入就是人均产出）＝［A(R)/A(P)]*(5/22)^[a/(a-1)]
c、将a＝1/3代入人均产出公式可计算具体的比值（仍然是A的函数）=［A(R)/A(P)]*2.1
d、可以令两国的A相等，看a的不同取值能否使人均产出比值达到16，测试后会发现这需要a>0.65。因此产出的差距可能在于技术水平A，因为大家的技术进步速度相同，所以技术的初始水平可能是产出差距的主要原因
⑶ 有关曼昆宏观经济学原理的选择题问题
净出口=国民储蓄-国内投资（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
所以当储蓄增加，净出口也会增加
净资本流出(net capital outflow)国内储蓄和国内投资之间的差额 （S-I)
∵Y=C+I+G+NX
∴Y-C-G=I+NX
∵S=Y-C-G; NX=NCO
∴S=I+NCO
∴NCO=S-I
所以当储蓄增加，资本净流出也会增加
但是答案无增加，只能选不变！
⑷ 曼昆宏观经济学
具体问的是什么？？？曼昆的书都很好啊！！！容易读懂。。。贴近生活。。。
⑸ 曼昆宏观经济学中的一题
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 发好了
⑹ 曼昆宏观经济学试题求答案
曼昆答案我已经上传！