假定某完全竞争厂商的长期总成本函数为LTC(Q)=0.02Q30.24Q2+1.92Q,则为实现利润最大化他的产量应该为()。
A.12
B.6
C.8
D.10
A.12
B.6
C.8
D.10
第1题
第3题
第4题
第5题
已知某完全竞争行业中的单个厂商的短期成本函数为STC=0.1Q3-2Q2+15Q+10,试求:当市场上产品的价格为P=55时,厂商的短期均衡产量和利润。
第6题
函数至少在取a、b、c、d四个参数值时与U形平均成本曲线相一致。
Suppose the long - run total cost function for an industry is given by the cubic equation TC =a+bq+cq2+dq3. Show (using calculus ) that this total cost function is consistent with a U - shaped average cost curve for at least some values of a, b, c, d.
第7题
某完全竞争厂商的短期成本函数为STC=0.1Q3-2Q2+15Q+10。求:
(1)当市场价格为P=55时,厂商的短期均衡产量与利润。
(2)市场价格下降为多少时厂商必需停产?
(3)厂商的短期供给函数是多少?
第8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9题
完全竞争行业中某厂商的成本函数为STC=Q³-5Q²+20Q+50,成本以美元计算,假设产品价格为45美元。
(1)求利润最大时的产量及利润总额。
(2)如果市场需求发生变化,由此决定的新的价格为25.5美元,在新的价格下,厂商是否会发生亏损?如果亏损,亏损多少?
(3)该厂商在什么情况下停止营业?
第10题
(1)求利润最大化时的产量。
(2)由于竞争市场供求发生变化,由此决定的新的价格为30元,在新的价格下,厂商是否会发生亏损?如果会,最小的亏损额为多少?
(3)该厂商在什么情况下会停止生产?
第11题