Does environmentally biased technological progress reduce air pollution emissions? empirical analysis based on spatial model and PSTR model

Environmental policies and Environmentally biased technological advances have important theoretical value practical significance for air pollution reduction green economic development in China. The article is based on panel data 270 cities China from 2007 to 2020. Using a Spatial model, the direct, spillover moderating effects of progress “local-neighbourhood” urban are examined empirically. On this basis, PSTR model used further explore non-linear different types environmental regulations. study found that: 1) There significant positive spatial correlation between both significantly suppresses pollution, with effects, conclusions remain robust after series robustness tests. 2) Different regulations reinforce dampening effect pollution. However, informal regulation only reinforces local cities. 3) threshold impact When level within certain interval, has 4) more eastern city, larger city non-resource-based cities, suppression advances. Based this, points out that governments at all levels should pay attention bias deepen construction joint prevention control mechanisms regional control; Establish multiple policies, formulate implement according conditions bias; Formulate targeted innovation characteristics It an reference help fight battle against in-depth promote improvement ecological quality.