We estimate the effect of internet penetration on retail bank margins in the euro area. Based on an adapted Baumol … [1982] type contestability model, we argue that the internet has reduced sunk costs and therefore increased contestability … countries. We utilise time series and cross-sectional variation in internet penetration. We find support for an increase in …

!'s search advertising business. Two of the deals have not raised antitrust concerns by competition authorities. I review these … deals with a focus on consumer welfare. Consumers are affected by being on one side of a multisided platform. Provided that …

analysis, an e-tailer?s Internet search engine rank as well as its advertising activities in search engines serve as proxies …An Internet retailer?s (e-tailer?s) outstanding virtual location enhances the probability of being noticed by potential … with investments in online advertising. Moreover, banner ads seem to serve as price advertising mechanism, whereas …

maximizes the certifier's profit and social welfare. This suggests the general principle that certification is, and should be …

telecommunications with Internet and broadcasting services. The criteria used by the regulatory authorities to identify those network …

Anonyme Märkte wie solche, die im Internet tagtäglich geöffnet werden, sind gekennzeichnet durch asymmetrische … Konsequenzen entwickelten die Designer von Internet-Märkten schon aus Eigeninteresse frühzeitig Instrumente zur Abwehr der adversen …