We investigate the effect of COVID-19 epidemic and the subsequent stay-at-home order on market efficiency in China’s online markets, by comparing the changes in price dispersion around the date of the lockdown with the corresponding changes in the same period in the lunar year of 2019. We find...

This paper analyzes the effects of market structure on price dispersion in the airline industry, using panel data from 1993 through 2006. The results found in this paper contrast with those of Borenstein and Rose (1994), who found that price dispersion increases with competition. We find that...