Developing new energy is critical to China’s green and low-carbon development. Therefore, in 2014, the Chinese government promulgated a vital innovation policy, namely, the New Energy Demonstration City Policy (NEDCP), which is expected to reduce energy consumption and carbon emissions in Chinese cities. Is the NEDCP facilitating green and low-carbon development in China, and if so, how? Based on unbalanced panel data from 2003 to 2017 at the city level in China, in this study we evaluate the impact of the NEDCP on green and low-carbon development using the staggered difference-in-differences (DID) method. We find that the NEDCP can significantly contribute to green and low-carbon development in China. After various robustness tests, our results are still valid. According to the heterogeneity analysis, non-resource and non-old industrial-base cities have a greater positive impact from this policy. The mechanism analysis denotes that the positive policy effect works by upgrading the industrial structure and stimulating urban innovation. The substantial empirical evidence presented in this paper supports the continued promotion and implementation of new-energy demonstration cities.

Based on monthly panel data from 2014 to 2020 and employing the staggered difference-in-differences (staggered DID) method, we examine the impact of environmental vertical management reform on data manipulation in the public sector. We reveal that environmental vertical management reform significantly reduces data manipulation in the public sector. Moderating effect analysis shows that economic growth targets weaken the inhibitory impact of this reform. Conversely, public environmental concerns could enhance the inhibitory impact of this reform on data manipulation. Mechanism analysis reveals that environmental vertical management reform works through strengthening grassroots environmental law enforcement. The increased independence of law-enforcing departments has reduced the tendency of local governments to engage in data manipulation.

Developing new energy is critical to China's green and low-carbon development. And the New Energy Demonstration City Policy (NEDCP) is a vital innovation policy that inspires the development of new energy. Is the NEDCP facilitating green and low-carbon development, if so, how? Employing unbalanced panel data from 2003 to 2017, the impact of NEDCP on green and low-carbon development was studied by using the "difference in difference" (DID) model. We find that this policy can take significantly role. After various robustness tests, our results are still valid. According to the heterogeneity analysis, non-resource and non-old industrial base cities have a greater positive impact from this policy. The mechanism analysis denotes that the positive policy effect works through upgrading the industrial structure and stimulating urban innovation. The substantial empirical evidence presented in this article supports the continued promotion and implementation of new energy demonstration cities.