投入产出法,又名部门联系平衡法,最早是由美国经济学家瓦·列昂捷夫提出来的。投入产出法的理论基础是政治经济学的再生产理论。马克思说:“在再生产过程的一切要素中,生产占首要地位。”“消费是生产的目的,消费的需要决定着生产。” Input-output law, also known as the Department of Balance Law, was first proposed by the United States economist Valery Lyotte. The theoretical basis of the law of input-output is the reproduction theory of political economy. Marx said: “In all the elements of the reproduction process, production plays a leading role.” “Consumption is the object of production, and the consumption needs determine the production.”