一、利益的稀缺性任何社会都是由各种各样的人构成的 ,人总是各种社会活动的行为主体 ,而且一切社会活动的最终目的也都是为了解决和满足现实世界中人们的各种需要。正如化学中分子是构成物质和保持其化学性质的基本微粒一样 ,在经济学中人也是经济系统的基本构成要素。由此也 First, the scarcity of interests Any society is composed of a variety of people, people are always the main actors of various social activities, but also the ultimate goal of all social activities are also to solve and satisfy people in the real world Various needs. Just as in chemistry molecules are basic particles that make up and retain their chemical properties, human beings are also the basic building blocks of economic systems in economics. From this also