Under the Kyoto Protocol, Clean Development Mechanism (CDM) is expected to facilitate the North-South knowledge spillovers for climate-friendly technologies. This paper examines the effects of this voluntary international climate cooperation on firm innovation and knowledge spillovers through...

Severe air quality hurts human capital, posing threats to innovative outcomes. Using unique data containing 12.8 million patent applications and associated citations in China, this paper examines the causal impact of the concentrations of particulate matter with a diameter of 2.5 μm or less...

This paper uses unique data on daily air pollution concentrations over the period 2001-2010 to test for manipulation in self-reported data by Chinese cities. First, we employ a discontinuity test to detect evidence consistent with data manipulation. Then, we propose a panel matching approach to...

Rational individuals take preventive measures to avoid costly air pollution exposure. This paper provides new empirical evidence of pollution avoidance that Chinese urban residents purchase particulate-filtering facemasks against ambient air pollution. The analysis is conducted with detailed and...