精选优质文档-倾情为你奉上Chapter 6 Economies of Scale, Imperfect Competition,and International TradenMultiple Choice Questions1.External economies of scale arise when the cost per unit(a)rises as the industry grows larger.(b)falls as the industry grows larger rises as the average firm grows larger.(c)falls as the average firm grows larger.(d)remains constant.(e)None of the above.Answer: B2.Internal economies of scale arise when the cost per unit(a)rises as the industry g
