Research On The Impact Of Environmental Regulation On The Spatiotemporal Heterogeneity Of Regional Technology Innovation

Since reform and opening up,China has relied on extensive factor input-type growth models to create world-renowned "growth miracles" in economic development,but with the disappearance of "demographic dividends" and "land dividends" and environmental pollution problems Intensifying,the sustainability of China's development is limited.What has been agreed is that technological innovation is an important focus to break the dual contradiction between economic development restrictions and environmental pollution.Especially since the 18 th National Congress of the Communist Party of China proposed the "innovation-driven" development strategy,technological innovation has been promoted to become more and more important Status.However,technological innovation will be affected by many uncertain factors,thus showing unstable characteristics.Among these factors,environmental regulation policies can play a certain regulatory role as a government management tool.The classic "Porter hypothesis" is based on The dynamic relationship between environmental regulation and technological innovation is assumed,but theoretical research has not reached a consensus on the relationship between the two.In this context,it is of great practical significance to study the impact of environmental regulations on regional technological innovation with government policies as the starting point.Based on the "Porter Hypothesis","Pollution Refuge Hypothesis" and "Government Competition" theories,this paper mainly studies the strong and weak Porter hypothesis effects of environmental regulation and the spatial spillover effect of environmental regulation on regional technological innovation.First,divide environmental regulations into two types: command and market,and study their direct effects on regional technological innovation and green total factor productivity.Second,consider technological innovation as an intermediary variable between environmental regulation and green total factor productivity.In order to explore the dynamic logical relationship between the strong and weak Porter hypotheses,finally,the impact of the changes in the intensity of local environmental regulations on the technological innovation of adjacent areas was studied from a local-neighbor perspective.Subsequently,panel data from 30 provinces in China from 2000 to 2015 were selected as research samples.Least squares(OLS),generalized least squares(FGLS),system generalized moment estimation(SYS-GMM),and maximum likelihood estimation(ML)and other methods to estimate the parameters of the model and passed a series of robustness tests.The results show that:(1)First,environmental regulations can release “environmental dividends”,and different types of regulations can inhibit the emission of pollutants such as CO2,SO2,and wastewater.Secondly,the test results of the "weak Porter hypothesis" show that the impact of imperative environmental regulation on technological innovation is positive;the impact of market-based environmental regulation on technological innovation has a U-shaped curve relationship,and gradually less after 2005.Some areas crossed the inflection point,and most of them are still at the left end of the curve.Finally,in the verification of the "Strong Porter Hypothesis",imperative regulation significantly inhibited the increase in green total factor productivity,and the number of design and practical patents played a positive intermediary role in the relationship between the two;market-based regulation and The relationship of green total factor productivity has a U-shaped curve,but all the samples have not crossed the inflection point.At this time,the number of invention patents plays a positive buffer role in the relationship between the two.(2)The impact of environmental regulations on technological innovation has a significant space spillover effect.When regional economic correlation and geographical distance are considered at the same time,the local command-type regulation and neighbouring area technological innovation present an inverted "U"-type relationship.When only geographical criticality is considered,this relationship is partially proved.When only economic correlation is considered,The impact of local order regulation on technological innovation in neighboring areas becomes positive;when only geographical criticality is considered,the impact of market-type regulation on technological innovation is an inverted "U" curve relationship,and the relationship between the two in other weight matrices is not significant..Finally,this article puts forward corresponding policy recommendations based on empirical results: fully consider the local economic development situation and choose environmental regulatory tools for matters;gradually guide the environmentalregulatory system to gradually transition from a government-led to a government-market-public tripartite co-governance model;and more Take measures simultaneously,increase green innovation investment and related subsidies,and improve management systems;grasp the form and intensity of environmental regulatory policies in neighboring regions,and build a coordinated development mechanism for environmental regulations between regions.