We use eBay data to investigate how trade in the U.S. is influenced by between-state differences in socioeconomic characteristics, tastes, and trust. States' similarity in cultural characteristics (ethnicity, religiosity, and political behavior) is predictive of online trade patterns. This is...

We study the impact of nationalism and interstate frictions on international economic relations by analyzing market reaction to adverse shocks to Sino-Japanese relations in 2005 and 2010. Japanese companies with high China exposure suffer relative declines during each event window; a symmetric...

Quality certification programs help consumers to identify high-quality products or sellers in markets with information asymmetries. Using data from eBay UK's online marketplace, we study how certification's impact on consumer demand varies with market- and seller-level attributes, exploiting...

We study the impact of nationalism and interstate frictions on international economic relations by analyzing market reaction to adverse shocks to Sino-Japanese relations in 2005 and 2010. Japanese companies with high China exposure suffer relative declines during each event window; a symmetric...

We study the use of and response to cheap talk by firms and their consumers, focusing on unverifiable promises of charitable donations on eBay. For transactions during March 2005 – May 2006, cheap talk listings have lower sales probabilities but sell at higher prices when they are successful....

" What is a market? To most people it is a shopping center or an abstract space in which stock prices vary minutely. In reality, a market is something much more fundamental to being human, and it affects not just the price of tomatoes but the boundaries of everything we value. Reading the...