需求的积累与增长是人类社会进步的基本动力。吃、穿、用、住、行、医、安、学、娱等围绕人的终极需求满足,大量彼此提供服务的企业形成纵横交错的产业链并产生了众多的行业。若从就业人口最多的产业名称来命名经济形态,那么,人类社会已经经历了采集经济、农业经济、工业经济三种经济形态。在采集经济形态,社会中的多数人所从事的是原始采集和渔猎活动,以满足人类最起码的生理营养需求。在农业经济时代,就业人口中的绝大多数人从事男耕女织,以满足增长了的生理营养与穿着方面的需求。在工业经济时代,就业人口中的大多数从事制造业,在极其宽泛的角度与领域满足人类多方面的需求,并使其生活极端方便化,形成了汽车、飞机、电视机等高级品应有尽有的格局。然而,人 The accumulation and growth of demand is the basic motive force for the progress of human society. Food, clothing, housing, transportation, medicine, security, learning, entertainment and other people's ultimate needs around the meet, a large number of businesses providing services to each other criss-cross the formation of the industry chain and generated a large number of industries. If the economic form is named from the industrial name with the largest employment population, then, human society has gone through three kinds of economic forms: gathering economy, agricultural economy and industrial economy. In collecting economic forms, most people in society are engaged in primitive acquisition and hunting and hunting activities to meet the minimum physiological nutrient needs of mankind. In the agricultural economy, the overwhelming majority of employed people engaged in male and female farming to meet the increased need for physical nutrition and dressing. In the era of industrial economy, most of the employed population engaged in the manufacturing industry, meeting the needs of mankind in a very wide range of perspectives and fields and expeditiously facilitating their life, thus forming a high-quality product such as automobiles, airplanes and television sets. pattern. However, people