产业经济学（双语）章节测试课后答案2024春

第三章测试

1.The elasticity of demand, is a measureof how sensitive quantity demanded is to a change in ( ).
A:quanlity B:cost C:price D:output
答案:C
2.（ ） is the difference between the maximum amount consumers are willing to pay for a good and the amount they actually pay。
A:consumer surplus B:government surplus C:social welfare D:producer surplus 3.If a firm could have the ability to set price above ( ), then we can say it has market power.
A:marginal cost B:total cost C:average cost D:maximum profit 4.In a perfectly competitive market, transaction costs are zero for (    )
A:only sellers B:only buyers C:buyers D:sellers 5.In a perfectly competitive market,transaction costs are zero for both buyers and sellers.
A:错 B:对 6.The profit-maximizing rule tells a firm to produce that quantity of output for which marginal revenue equals marginal cost.
A:错 B:对 7.Economists often evaluate the welfare effects of changes in market structure or of government policies by looking at changes in consumer surplus.
A:错 B:对 8.A monopoly is the sole producer of a good for which there are no close substitutes
A:错 B:对 9.The Lerner Index indicates that a monopolist has unlimited control over price.
A:错 B:对 10.If the elasticity equals -10,the Lerner Index equals 0.01
A:对 B:错 11.If monopolization of an industry raises costs, the deadweight loss is larger
A:错 B:对 12.The competitive market equilibrium is allocatively efficient: It maximizes the sum of consumer and producer surplus.
A:错 B:对 13.The deadweight loss triangle is a measure of the misallocation of resources resultingfrom monopoly.
A:对 B:错 14.The simple comparison of competition and monopoly highlights the resource misallocation associated with market power.
A:对 B:错 15.Producer surplus is the difference between the (  )the producer receives for selling a unit of output and its reservation (  ）
A:demand price, market price B:market price, demand price C:marginal price, demand price D:market price, supply price