第十三章 Firm Supply：Learn the relationship between firm supply and market environment. Understand the long run supply curve of a firm.13.1Firm Supply and Market Environment:Firm Supply and Market Environment[判断题]In a perfectly competitive industry, the demand curve for the total output of the industry may be downward sloping.选项:[错, 对]
13.2The Firm’s Short-Run Supply Decision:The Firm’s Short-Run Supply Decision
13.3The long run Supply Curve of a Firm:The long run Supply Curve of a Firm
[判断题]Price equals marginal cost is a sufficient condition for profit maximization选项:[错, 对]
[单选题]A profit maximizing firm continues to operate even though it is losing money. It sells its product at a price of $100. From these facts we deduce that:选项:[marginal cost is increasing., average variable cost is less than $100., average total cost is less than $100., average fixed cost is less than $100.]
[判断题]The change in producer's surplus when the market price changes from p1 to p2 is half of the area to the left of the marginal cost curve between p1 and p2.选项:[对, 错]
[单选题]A firm has the long run cost function C(q)=4q2 + 4. In the long run, it will supply a positive amount of output, so long as the price is greater than:
选项:[24, 16, 4, 8]
[单选题]Suppose that Dent Carr's long run total cost of repairing s cars per week is c(s)=3s2 + 27.If the price he receives for repairing a car is 30, then in the long run, how many cars will he fix perweek if he maximizes profits?
选项:[7.5, 5, 10, 0]
[单选题]
选项:[126, 252, 260, 63][单选题]
选项:[
, 
, 
, 
][判断题]For a perfectly competitive firm operating at the profit-maximizing output level in the short run, its marginal cost equals market price选项:[错, 对]
[单选题]
选项:[32, 16, 72, 64]
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