In this paper, we investigate optimal pricing strategies for an online grocery retailer that derives its profits from delivery fees and grocery sales. We base our theoretical framework on the well-established work of Schmalensee (1981) in two-part pricing, while allowing for repeat purchase...

We present an empirical investigation of the role of marketing agencies in Google's online ad auctions. By combining data on advertisers' affiliation to marketing agencies with data on bidding in ad auctions, we analyze how changes in the concentration of clients in the same industry under the...

In this paper, we build a theoretical model in which an online hosting platform can develop a copyright filter to screen content that contributors wish to upload. The technology is imprecise, since non-infringing material may be incorrectly filtered out. Once the content is hosted on the...

We approach the issue of the value of a platform to a seller in a two-sided market where both buyers and sellers multi-home. A seller that loses access to a major buyer platform can potentially incur substantial financial losses. We exploit a recent conflict between American Airlines and two...

This paper analyses the dynamics of hotel prices listed on Booking.com in the period 2014-16. This period is characterised by the most important antitrust decisions regarding the use of price parity clauses by online travel agencies (OTAs) in the EU. First, we document the dynamics of hotel...