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假设企业的产品价格高于生产的平均可变成本,但低于生产的平均总成本。在短期中企业将停止营业吗?试解释之。在长期中企业将退出市场吗?试解释之。
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If the firm' s average cost curves are U-shaped, why does its average variable cost curve achieve its minimum at a lower level of output than the average total cost curve?
A.2
B.1
C.3
D.0.5
A.盈亏平衡点的销售量是指销售收入等于固定成本与可变成本之和时的销售量
B.盈亏平衡点的销售量是指销售收入于固定成本时的销售量
C.快件寄件价格高于网点的可变成本但低于平均单件固定成本时,不应当收取该快件,因为寄该快件是亏损
D.快件平均寄件价格高于网点的可变成本但低于平均单件固定成本时,应当收取该快件,因为虽然是寄该快件是亏损,但可以补尝一部分固定成本的损失
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.