This study analyzes and contrasts the U.S. and EU antitrust standards on bundling (in its various forms) and tying. The analysis is applied to the U.S. and EU cases concerning Microsoft's practice of integrating (tying) new products (Internet Explorer in the U.S. and Windows Media Player in the...

This paper empirically analyzes how the use of vertical price restraints has impacted retail prices in the market for e-books. In 2010 five of the six largest publishers simultaneously adopted the agency model of book sales, allowing them to directly set retail prices. This led the Department of...

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...

We examine the intersection of patents and antitrust where a patent holder uses the monopoly power it possesses in the market for a patented product to exclude competitors in an adjacent market and attempt to monopolize or monopolize the adjacent market. The present scheme for awarding patents...

We study a two-sided market in which a platform connects consumers and sellers, and signs private contracts with sellers. We compare this situation with a two-sided market with public contracts. We find that the platform provider sets positive (negative) royalties to sellers and earns a negative...

We analyse a newspaper market where two editors compete for advertising as well as for readership. They first choose the political position of their newspaper, then set cover prices and advertising tariffs. We build on the work of Gabszewicz, Laussel and Sonnac (2001, 2002), whose model we take...

This paper explores the incentives for, and the effects of, collusion in prices between two-sided platforms. We characterize the most profitable sustainable agreement when platforms collude on both sides of the market and when they collude on a single side of the market. Under two-sided...

Recent theory has examined the competitive effects of minimum advertised price (MAP) restrictions: manufacturer policies that can limit the ability of consumers to search for product prices. In this paper, we empirically study the effect of a major electronics manufacturer's MAP policy on the...