Air pollution

  • 详情 Does Air Pollution Cause a Reduction of Housing Prices? New Evidence Using Central Environmental Protection Inspection as a Quasi-Natural Experiment
    This paper investigates the causal effects of air pollution on housing prices in China using a dataset of 65 cities from 2014 to 2021. We employ the central environmental protection inspection (CEPI) as a quasi-natural experiment for air pollution index to show a negative causal relationship between air pollution and housing prices. We also find that this causal relationship is more pronounced for less-developed, manufacturing-intensive and tourismrelied cities. Our results reveal the response to central environmental protection inspection on improvement in regional air pollution protection but its by-effects on housing markets, as the impact is limited if the inspection is conducted repeatedly, suggesting its unsustainability as a regulatory tool.
  • 详情 Policy Uncertainty Reduces Green Investment
    Government subsidies are often used to stimulate environment-friendly investment. We find that Chinese firms reduce green investment as the uncertainty of subsidies rises. This effect is identified from weather-driven fluctuations in air pollution that lead to fluctuations in subsidy allocations: Firms in cities where weather-driven subsidy uncertainty is high engage in less green R&D investment, patent applications, and research staff. Industries that are heavy emitters and those focused on environmental technologies are more affected. The results suggest that policy uncertainty may originate not only from political and macroeconomic shocks but from behavioral mechanisms that link policy to salient recent conditions.
  • 详情 Centralization of Environmental Administration and Air Pollution: Evidence from China
    This paper studies how centralizing environmental administration affected air pollution in China. China launched a vertical administration reform in 2016 to empower upper-level Environmental Protection Bureaus to administer lower-level bureaus vertically through personnel control. Exploiting a stacked difference-in-differences strategy and a regression discontinuity design, we find that the verticalization reform significantly reduced air pollution. The effect was stronger in places where air pollution is less likely to be affected by spillovers from other provinces or where local governments paid less attention to environmental protection before the reform. Additionally, we find that the reform significantly increased the intensity of inspection by local agencies and environmental investments by heavily polluting firms.
  • 详情 The Effect of Air Pollution on Chinese Green Bond Market: The Mediation Role of Public Concern
    It has been confirmed that sustainable investments contributing to environmental protection can benefit from the deterioration of air pollution, but this influence mechanism has not been fully discussed. This paper proposes a mediation model to study air pollution's influence on green bonds. Theoretically, air pollution raises public environmental awareness and perceptions of physical health risks, leading to increased public concern. Enhanced public concern drives investors' green preference and environmental responsibility, thus expanding green bond demand. Our studies show air pollution is significantly positive related to public concern. Public concern positively links with green bond investment willingness, resulting in increased volatility. The total positive effect of air pollution on green bond is partly absorbed by the effect of public concern. These findings confirm the mediation role of public concern. In addition, major crisis events (e.g., COVID-19) may hinder the mediation process by generating a negative trend and distracting the public.
  • 详情 Air Pollution and Media Slant: Evidence from Chinese Corporate News
    This paper examines the impact of air pollution on media slant of public listed firms in China. Using air quality and media data at the city level, we find that lower air quality generally leads to lower media slant. When the air quality changes from lightly polluted to heavily polluted, the number of negative sentences increases by about 2%. Our subsample analysis shows that the effect of air pollution on media slant is similar for large and small firms but is stronger for non-SOE firms. Furthermore, the effect of air pollution on media slant is stronger for firms of non-heavily polluted industry than for firms in heavily polluted industries. These results suggest that air pollution affects media slant.
  • 详情 Digital financial inclusion and air pollution: Nationwide evidence of China
    We provide nationwide causal estimates of digital financial inclusion’s (DFI) effect on air pollution in the short term for China from 2014 to 2018. Using distance to Xihu District as an instrument, 1% gain of DFI increases air pollution by 0.36%. The baseline result is strongly robust to various checks. The coverage breadth and usage depth of DFI increase pollution, with the elasticity of 0.39 and 0.37 respectively, whereas the digitization level of DFI lowers pollution, with the elasticity of -1.42. The heterogeneous short-run effect of DFI can be attributed to a multitude of channels, including pollution standard, geographical factors, population density, development gaps and international trade.