题目内容
（请给出正确答案）
A.marginal cost ＞ average cost = $16.67
B.marginal cost ＜ average cost = $16.67
C.$16.67 = marginal cost = average cost
D.$16.67 = marginal cost ＞ average cost
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更多“If, in long run equilibrium, t…”相关的问题
logies may fundamentally alter out way of
A) view B) distance C) jump D) run
If a firm enjoys economies of scale up to a certain output level, and cost then increases proportionately with output, what can you say about the shape of the long -run average cost curve？
(1)企业目前的产量为100单位，成本最小化的劳动和资本分别为20和5。在图上用等产量线和等成本线表示出来。
(2)企业想将产量扩大为140单位，如果资本在短期固定，需要多少劳动？在图形上表示出来，并计算企业新的成本。
(3)在图形上表示出企业在长期生产140单位产品的成本最小化劳动和资本投入。
(4)如果边际技术替代率为K/L,计算生产140单位产品的最优劳动和资本投入。
Suppose that a firm' s production is q= 10L1/2K1/2. The cost of a unit of labor is $ 20 and the cost of a unit of capital is $ 80. a The firm is currently production 100 unis of output and has determined that the cost - mini-mizing quantities of labor and capital are 20 and 5, respectively. Graphically illustrate this using isoquants and isocost lines.
b，The firm now wants to increase output to 140 units. If capital is fixed in the short run, how much labor will the firm require？ Illustrator this graphically and find the firms new total cost.
c. Graphically identify the cost - minimizing level of capital and labor in the long run if the firm wants to produce 140 units.
d. If the marginal rate of technical substitution is K/L, find the optimal level of capital and labor required to produce the 140 units of output.
一个地区有若干家商店销售某种品牌的真空吸尘器。
(1)假如所有销售商要价相同，他们的长期经济利润是否都等于零？
(2)假如所有销售商要价相同，但是一家当地销售商的商店经营场所为他自己拥有的房子，不必付租金，这个销售商的经济利润为正吗？
(3)不必付租金的这家销售商是否有激励去降低其销售价格？
A certain brand of vacuum cleaners can be purchased from several local stores as well as from several catalogue or website sources.
a If all sellers charge the same price for the vacuum cleaner, will they all earn zero economic profit in the long run？
b. If all sellers charge the same price and one local seller owns the building in which he does business, paying no rent, is this seller earning a position economic profit？
e. Does the seller who pays no rent have an incentive to lower the price he charges for the vacuum cleaner？
Ironically，it is often success that leads people to flirt with failure.Praise won for _ 28_a skillsuddenly puts one in the position of having everything to lose.Rather than putting their reputation on theline again，many successful people develop a handicap—drinking，_ 29_，depression—that allowsthem to keep their status no matter what the future brings. An advertising executive 30_ fordepression shortly after winning an award put it this way:“Without my depression，I'd be a failure now;with it，I'm a success 'on hold.’”
In fact，the people most likely to become chronic excuse makers are those 31 _ with success.Such people are so afraid of being 32a failure at anything that they constantly develop onehandicap or another in order to explain away failure.
Though self-handicapping can be an effective way of coping with performance anxiety now and then,in the end，researchers say，it will lead to_ 33_. In the long run，excuse makers fail to live up to theirtrue_ 34_and lose the status they care so much about. And despite their protests to the _35they have only themsclves to blame.
A) contrary F) labeled K) potential
B) fatigue G) legacies L) rcalms
C) heavily H) mastering M) reciprocal
D) heaving l) momentum N) ruin
E) hospitalized J) obsessed o) viciously
