Product assortment is a critical competitive tool for retailers to increase sales, maximize profits, and attain customer satisfaction. Increasingly, more and more retailers provide in-store product assortment information online or via smartphone apps for consumers to check if their preferred...

A key question for Internet commerce is the nature of competition with traditional brick-and-mortar retailers. Although traditional retailers vastly outsell Internet retailers in most product categories, research on Internet retailing has largely neglected this fundamental dimension of...