环保投资和环保产业的国民经济影响作用研究

利用联合国SEEA中关于环保核算的基本理论及方法构建了环保产业外部化的投入产出表,并采用投入产出模型定量分析环保投资对国民经济的贡献作用以及环保产业的波及影响。实证结果表明:环保投资对GDP有较好带动作用,单位投资的拉动系数为1.41,占当年GDP的2.29%;环保产业的影响力系数均大于感应度系数,说明环保产业对国民经济增长的拉动作用大于同比例国民经济对环保产业的推动作用,环保产业已从收入导向型和经济拉动模式逐渐向经济带动模式转变。

Impacts of Environmental Protection Investment and Environmental Protection Industry on National Economy

In this study,the basic theory and methods of environmental accounting of UN SEEA is used to establish an inputoutput table of externalization of the environmental protection industry.Input-output model is also adopted to quantitatively analyze the contribution of environmental protection investment to the national economy and the impacts of environmental protection industry.The empirical results show that environmental protection investment has a good effect on GDP,with the pulling coefficient of unit investment as 1.41,accounting for 2.29％ of the GDP of the year.The influence coefficient of environmental protection industry is greater than the coefficient of inductivity,indicating that the role of environmental protection industry in stimulating the national economic growth is greater than that of the national economy in the same proportion in promoting the environmental protection industry.Therefore,environmental protection industry is changed gradually from the income-oriented and economic pull mode into the economic drive mode.