一、前言产业关联理论是产业经济学的重要组成部分,又称产业联系理论或投入产出理论,强调不同产业部门之间在生产投入中的互相依存关系,经济学家A.O.赫希曼1958年在《经济发展战略》②一书中,将“产业关联”划分为“前向关联”和“后向关联”。“前向关联”是指某一产业部门对另一产业部门形成“中间需求”关系;“后向关联”是指某一产业部门成为另一产 I. Introduction The theory of industrial relations is an important part of industrial economics, also known as industrial link theory or input-output theory, emphasizing the interdependence among different industrial sectors in production inputs, economist AO Hirschman 1958 In “Economic Development Strategy,” a book, “industrial relations” is divided into “forward link” and “backward link”. “Forward link ” refers to the formation of an “intermediate demand ” relationship; “backward link ” refers to an industry sector to another industry department to become another