精选优质文档-倾情为你奉上Ten Principles of EconomicsWhat Economics Is All AboutScarcity: the limited nature of societys resources（稀缺性：社会资源的有限性）Economics: the study of how society manages its scarce resources（经济学：研究社会如何管理自己的稀缺资源）how people decide what to buy, how much to work, save, and spendhow firms decide how much to produce, how many workers to hirehow society decides how to divide its resources between national defense, consumer goods, protecting the environment, and other nee
