The Impact of Carbon Emission Trading Policies on Urban Green Innovation in China and Its Heterogeneity Analysis
As an important lever in addressing global climate change,carbon emission trading policies have not only significantly facilitated the achievement of emission reduction targets and the vigorous development of a low-carbon economy,but also played a crucial role in leading cities towards the path of green innovation.This study employs a difference-in-difference model based on green patent data at the city level from 2006 to 2021,to empirically examine the impact of the policy on urban green innovation and the influence of the heterogeneity in terms of the region and policy mechanism.Findings reveal a significant boost in urban green innovation,particular-ly in strategic innovations,under the carbon trading regime.The policy exhibits stronger effects in eastern regions compared to central and western areas,and non-resource-dependent cities outperform those reliant on resources,with Ⅱ-type megacities experiencing the most pronounced effects.Furthermore,policy design factors matter.Re-sults indicate that compensated allocation and higher transaction prices enhance green innovation incentives.Therefore,to propel urban green technological advancements and sustainable economic growth,governments should enhance green innovation assessments and subsidies,refine carbon trading policies,implement differential strategies for pilot cities,promote a fee-based distribution system,and establish robust regulatory frameworks,en-suring transparency and adequate information disclosure in the carbon market.
万方数据
维普
