This paper considers identification and estimation of a general model for online price competition. We show that when the number of competing firms is unknown, the underlying parameters of the model can still be identified and estimated employing recently developed results on measurement errors....

We study the impact of the Euro on prices charged by online retailers within the EU. Our data spans the period before and after the Euro was introduced, covers a variety of products, and includes countries inside and outside of the Eurozone. Our main finding is that the Euro changeover in 2002...

Many empirical studies of online price dispersion show that sellers post different prices for homogeneous goods. However, seller heterogeneity is difficult to control for and posted prices may not reflect price dispersion in actual transactions. We contribute to this literature by selling...