Green technology innovation is one of the driving forces of industrial structure upgrading. This innovation is thought to be related to environmental regulation. The study uses panel data for 30 Chinese provinces and cities from 2009 to 2020 and presents a comprehensive research-based explanation of how environmental regulations impact green innovation. This study employs the spatial Durbin model to analyze the spillover effect of the region. The results show that the total impact of environmental regulations is 0.223%, of which the direct effect is 0.099%. This impact includes the effects of both formal and informal environmental regulation. It indicates that ecological regulations significantly enhance green technology innovation. Furthermore, the spatial spillover effect is significantly positive at the 1% level with a coefficient of 0.124. Such spillover effects represent a learning effect of regional environmental regulation. Based on the results, the study suggests a few policy measures based on the detailed outcomes.

This paper focuses on whether city honor competition has led to a sectoral shift. The research argues that cities’ actions in pursuing honor have led to their changing from the manufacturing sector to the service sector. This paper attempts to construct a theory from city competition to sector shift. The research methods used are year-by-year propensity score matching and the difference-in-difference method. The results of the regressions prove that a city honor competition leads to a shift from the manufacturing sector to the service sector. The true value of this effect is approximately between 2.3274 and 3.0393, showing that the city honor competition promotes a sectoral shift. The trend of the city’s economy towards the service sector is evident in the competition. The robustness test proves that the model satisfies the matching equilibrium assumption. The placebo test proves that other unobserved factors do not affect the policy. The heterogeneity test finds that the larger the city size, the stronger the effect of city honors on the sector.