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假设完全竞争厂商产品Q=800,P=¥12,ATC=¥8,那么其利润为()
A.¥-1600
B.¥3,200
C.¥8.000
D.¥1.600
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A.¥-1600
B.¥3,200
C.¥8.000
D.¥1.600
A.其他三个选项都对
B.边际收益比之前更高
C.平均总成本比之前更高
D.产量会比之前更高
A.如果在某一行业中存在许多厂商,则这一市场是完全竞争的
B.如果厂商所面临的需求曲线是向下倾斜的,这这一市场是完全竞争的
C.如果行业的所有厂商生产的产品相同,而且厂商数目大于1,则这个市场是完全竞争的
D.如果某一行业中有不止一家厂商,并且他们都生产相同的产品则这个市场是完全竞争的
A.信息畅通、完全
B.厂商生产和销售的商品没有替代品
C.厂商提供的产品无差异
D.有大量的买者和卖者
E.资源能够自由流动
A.800×(P/B,10%,5)×(P/F,10%,2)
B.800×(P/B,10%,7)-800×(P/B,10%,2)
C.800×(P/B,10%,5)×(P/F,10%,1)
D.800×(F/B,10%,5)×(P/F,10%,7)
Because Industry X is characterized by perfect competition, every firm in the industry is earning zero economic profit. If the product price falls, no firm can survive. Do you agree or disagree? Discuss
假设厂商成本为C(q)=16+4q2。
(1)求出平均成本、固定成本、可变成本、平均可变成本和平均固定成本。(提示:边际成本为MC =8q。)
(2)在图上画出成本、边际成本和平均可变成本曲线。
(3)求出最小化平均成本的产出水平。
(4)当价格在哪一区间时厂商产量为正?
(5)当价格在哪一区间时厂商利润为负?
(6)当价格在哪一区间时厂商利润为正?
Suppose the same firm's cost function is C(q)=16+4q.
a. Find variable cost, fixed cost, average cost average variable cost. and average fixed cost.(Hint: Marginal cast is given by MC =8q. )
b. Show the average cost, marginal cost, and average variable cost curves on a graph.
c. Find the output that minimizes average cost.
d. At what range of prices will the firm produce a positive output?
f.At what range of prices will the firm earn a positive profit.