长江经济带科技创新效率与生态环境非均衡发展研究——基于双门槛面板模型

Research on Non-Equilibrium Relationship between Efficiency of Regional Science & Technology Innovation and Ecological Environment in Yangtze River Economic Zone——Based on Dual-Panel Threshold Model

利用超效率Min DS模型与Malmquist指数测算1998-2014年长江经济带11省市科技创新效率,再以此为门槛变量,通过Hansen门槛面板模型检验科技创新效率对生态环境的门槛效应。结果表明：流域考察期内科技创新效率整体呈＂哑铃状＂分布,区域间存在较大效率差;科技创新效率对生态环境的门槛效应显著,正向拉动作用呈先升再降的倒＂U＂型趋势。进一步指出科技创新是缓解环境压力的有效途径,既要以＂效率导向＂关注投入产出比是否经济,也要坚持＂绿色导向＂,避免一味追求效率而忽视高科技污染对生态环境的影响。

This paper uses the super-efficiency Min DS model and Malmquist index firstly to measure the efficiency of science and technology innovation in 11 areas in the Yangtze River Delta from 1998 to 2014,then test threshold effect between efficiency of ST innovation and ecological environment through Hansen threshold panel model. Results show that the efficiency of ST innovation in the Yangtze River economic zone presents a＂dumbbell-shaped＂distribution,there is a large efficiency difference among regions,and it also has a significant threshold effect on the environment,whose positive pulling effect is＂inverted U-shaped＂trend; Meanwhile,this research points out that ST innovation is an effective way to alleviate the pressure of environment,on one hand,concerning about the proportion of input-output economy from efficiency-orientation perspective,on the other hand,avoiding high-tech pollution caused by ST innovation on the environment from green-orientation perspective.