We evaluate the environmental and economic effects of Beijing’s driving restrictions. Based on daily data from multiple monitoring stations, air pollution falls 19% during every-other-day and 8% during one-day-per-week restrictions. Based on hourly viewership data, the number of...

We demonstrate a striking but previously unnoticed relationship between city size and the black-white wage gap, with the gap increasing by 2.5% for every million-person increase in urban population. We then look within cities and document that wages of blacks rise less with agglomeration in the...

Based on the parallel growth implications of the four urban growth theories (endogenous growth theory, random growth theory, hybrid growth theory, and locational fundamentals theory), this paper uses the Chinese city size data from 1984-2006 and time series econometric techniques to test for...