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边际效应 marginal effect
答案
增施单位量肥料所得的产量效果。
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题目内容
（请给出正确答案）
答案
增施单位量肥料所得的产量效果。
更多“边际效应 marginal effect”相关的问题
第1题
某小国能够以每单位10的国际价格进口某种产品。这种产品在该国国内的供给曲线为：S=50+5P，需求曲线为：D=400-10P。另外，每1单位的产品能够产生价值为10的边际社会收益。
a．试计算对每单位进口产品征收5个单位的关税给社会福利造成的全部影响。
b．计算5个单位的生产补贴给社会福利造成的全部影响。
c．为什么生产补贴产生的社会福利所得比关税多？
d．最优生产补贴是多少？
A small country can import a good at a world price of 10 per unit．The domestic supply curve of the good is
S=50+5P．
The demand curve is
D=400-10P．
In addition，each unit of production yields a marginal social benefit of 10．
a．Calculate the total effect on welfare of a tariff of 5 per unit levied on imports．
b．Calculate the total effect of a production subsidy of 5 per unit．
c．why does the production subsidy produce a greater gain in welfare than the tariff？
d．What would the optimal production subsidy be？
第2题
假设某一特殊行业的信息如下:
QD=6500-100P市场需求
QS=1200P市场供给
C(q)=722+q2/200厂商总成本
MC(q)=2q/200
厂商边际成本
假定所有厂商完全同质，而且市场是完全竞争的。
(1)计算均衡价格、均衡产量、厂商供给产量和每家厂商的利润。
(2)在长期将有厂商进入还是退出市场？试解释。进入或退出将会对市场产生何种影响？
(3)在长期，每家企业销售其产品的最低价格为多少？利润是正的、负的还是为零？解释你的结论。
(4)在短期，每家企业销售其产品的最低价格为多少？利润是正的、负的还是为零？解释你的结论。
Suppose you are give the following information about a particular industry:
QD=6500-100P Market demand
QS=1200P Market supply
C(q)=722+q2/200 Firm total cost function
MC(q)=2q/200 Firm marginal cost function
Assume that all firms are identical and that the market is characterized by pure competition.
a. Find the equilibrium price, the equilibrium quantity, the output supplied by the firm, and the profit of each firm.
b. Would you expect to see entry into or exit from the industry in the long run？ Explain. What effect will entry or exit have on market equilibrium？
e. What is the lowest price at which each firm would sell its output in the long run？ Is profit positive, negative, or zero at this price？ Explain.
d. What is the lowest price at which each firm would sell its output in the short run？ Is profit positive, negative, or zero at this price？ Explain.
第5题
If the marginal propensity to consume is 4/5, then a decrease in government spending of $1 billion decreases the demand for goods and services by $5 billion.()
