This study offers evidence of the existence of switching costs on the Internet. It uses more flexible methods than previously possible to separate switching costs from serially correlated unobservables at Internet portals. The data contain nearly 1000 observations per household, allowing for...

We empirically examine the trade-off between the benefits of buying online and the benefits of buying in a local retail store. How does a consumer's physical location shape the relative benefits of buying from the online world? We explore this problem using data from Amazon on the top selling...

When a user shares multi-dimensional data about themselves with a firm, the firm learns about the correlations of different dimensions of user data. We incorporate this type of learning into a model of a data market in which a firm acquires data from users with privacy concerns. User data is...