精选优质文档-倾情为你奉上1)Problems and Applications1. a.A family deciding whether to buy a new car faces a tradeoff between the cost of the car and other things they might want to buy. For example, buying the car might mean they must give up going on vacation for the next two years. So the real cost of the car is the familys opportunity cost in terms of what they must give up.b.For a member of Congress deciding whether to increase spending on national parks, the tradeoff is between parks an