Stock prices and workplace mobility trace out striking clockwise paths in daily data from mid-February to late May 2020. Global stock prices fell 30 percent from 17 February to 12 March, before mobility declined. Over the next 11 days, stocks fell another 10 percentage points as mobility dropped...

China's stock market greatly outperformed other national markets during the first several months of the COVID-19 pandemic, and it did so even before it became evident that early containment efforts would flounder in the United States and many other countries. As to why, one view holds that...

We build a granular Geographic Information System (GIS) database that covers China's national highways, modern motorways, traditional railways, high-speed railways, and waterways at an annual frequency from 1993 to 2020. After describing the database and its construction, we characterize the...

China has undertaken massive investments in its surface transportation system since the early 1990s, continuing to the present day. We study the impact of these public investments on plant productivity and resource allocation efficiency. We first collect and geocode highly detailed data on...

China's stock market greatly outperformed other national markets during the first several months of the COVID-19 pandemic, and it did so even before it became evident that early containment efforts would flounder in the United States and many other countries. As to why, one view holds that...

Despite the dominance of retail investors in the Chinese stock market, there's a conspicuous absence of price momentum in weekly and monthly returns. This study uncovers the presence of price momentum in daily returns and, through a systematic analysis of trading heterogeneity among investors,...

Coal heating in residential homes is an important source of indoor air pollution, leading to detrimental health effects. We conduct a randomized field experiment in northern China using three types of SMS campaigns targeting three potential biases that may hinder the adoption of electric...