To prepare for the 2008 Olympic Games, China adopted a number of radical measures to improve air quality. Using officially reported air pollution index (API) from 2000 to 2009, we show that these measures improved the API of Beijing during and after the Games, but 60% of the effect faded away by...

This paper evaluates the impact of China's natural gas pipeline projects (NGPPs) on air pollution reduction, by using national data of pollutant emissions of over 800,000 institute-level observations from 1998 to 2010. The difference-in-differences approach shows that the introduction of...

To prepare for the 2008 Olympic Games, China adopted a number of radical measures to improve air quality. Using officially reported air pollution index (API) from 2000 to 2009, we show that these measures improved the API of Beijing during and after the Games, but 60% of the effect faded away by...

Since the 9th Five Year Plan (FYP) period (1996-2000), the Chinese central government began to adopt the total emissions control (TEC) policy, a target-based environmental regulation which set emission reduction targets for designated pollutants. The policy became highly binding for local...

Major cities in China and many other fast-growing economies are expanding their subway systems in order to address worsening air pollution and traffic congestion. This paper quantifies the impact of subway expansion on air quality by leveraging fine-scale air quality data and the rapid build-out...