We study a large market with directed search and signaling. Each seller chooses an investment that determines the quality of the good which is the seller's private information. A seller also chooses the price of the good and the number of selling sites. After observing sellers' choices of prices...

When a consumer can appear on both sides of a two-sided market, such as a user who both buys and sells on eBay, the platform may want to bundle the services it provides to two sides. I develop a general model for such "mixed" two-sided markets, and show that a monopolist platform's incentive to...

Over the past couple of years, many competition and antitrust scholars have feared the dawn of ‘algorithmic collusion’. Some have thus suggested expanding the notions of ‘collusion’ and ‘agreement’ in order to capture such coordination. Rather than using an expansive reading of...

This paper compares the welfare implications of two widely used pricing assumptions in the New-Keynesian literature: Calvo-pricing vs. Rotemberg-pricing. We show that despite the strong similarities between the two assumptions to a first order of approximation, in general they might entail...

We conducted a laboratory experiment to study the price setting behavior in two-sided markets. We seek to answer two specific research questions: Do participants charge the equilibrium prices that can be derived from a theoretical model? How is the price setting affected by the characteristics...