Transparency by Chinese cities reduces pollution violations and improves air quality.

Area of Science:

• Environmental Policy
• Public Administration
• Environmental Science

Background:

• Establishing a causal link between government transparency and environmental policy outcomes is challenging due to endogeneity.
• Local governments' incentives to be transparent often correlate with their performance.

Purpose of the Study:

• To experimentally determine the causal effect of local government transparency on air pollution management.
• To quantify the impact of increased governmental transparency on environmental quality and regulatory enforcement.

Main Methods:

• A randomized controlled trial was conducted in China, assigning municipal governments to a high-visibility transparency rating treatment or control group.
• The study measured changes in transparency, firm violations, government inspections, and ambient air pollution levels before and after the intervention.

Main Results:

• The transparency intervention significantly increased governmental transparency in treated cities.
• High-polluting firms in treated cities reduced violations by 37%; government inspections rose by 90%.
• Ambient air pollution decreased by 8-10% in treated cities, indicating substantial environmental improvements.

Conclusions:

• Randomly increasing governmental transparency leads to improved air quality and environmental management.
• Transparency serves as an effective tool for enhancing regulatory enforcement and achieving environmental goals.
• The findings highlight the importance of transparency in contexts with public and higher-level government accountability mechanisms.