We analyze geographic patterns of trade using transactions data from eBay and MercadoLibre, two large online auction sites. We find that distance continues to be an important deterrent to trade between geographically separated buyers and sellers, though at a lesser extent than has been observed...

We analyze geographic patterns of trade between individuals using transactions data from eBay and MercadoLibre, two large online auction sites. We find that distance continues to be an important deterrent to trade between geographically separated buyers and sellers, though to a lesser extent...

We examine the information flow for four stocks over seven months to trace the relationship between on-line discussion, news activity, and stock price movements. On-line discussions support numerous unsubstantiated rumors, substantial on-point exchanges, and quick dissemination of imminent and...

Using a new database, we document the determinants of involuntary consumer bank account closures. During 2001–2005, approximately 30 million debit accounts were involuntarily closed for excessive overdrafting. We focus on multiple factors to explain this phenomenon: household economics and...

In this clinical study, we examine the information flow for four stocks over seven months to trace the relationship between on-line discussion, news activity and stock price movements. On-line discussions are characterized by numerous unsubstantiated rumors, substantial on-point exchanges and...

The "Central Bank" series analyzes the use of information and product design for managing the counterparty risk of newly acquired customers. Central Bank, a mid-sized regional U.S. bank, was attempting to grow its customer base by increasing the number of new checking accounts. Like many banks,...