Using Visa debit and credit card transactions in the U.S. from 2016 to 2019, we document the importance of customers in accounting for sales variation across merchants, across stores within retail chains, and over time for individual merchants and stores. Customers, as opposed to transactions...

Search theories suggest that a decline in search costs increases search behavior. This relationship has been well supported by prior experimental research but not by studies conducted in retail settings. Our review of the literature suggests that this discrepancy might be driven by the fact that...