We consider a heretofore unexplored explanation for why platforms, such as Internet service providers, might impose download limits on content consumers: doing so increases the degree to which those consumers view content providers products as substitutes. This, in turn, intensifies competition...

This paper studies how product differentiation affects substitution patterns and firms' markups in oligopolistic markets where products are differentiated over multiple attributes and consumers have linear-quadratic preferences. Under these assumptions, the cross-price elasticity between any two...

This paper introduces a number of game-theoretic tools to model collusive agreements among firms in vertically differentiated markets. I firstly review some classical literature on collusion between two firms producing goods of exogenous different qualities. I then extend the analysis to a...

This paper presents a model of strategic buyer-seller networks with information exchange between sellers. Prior to engaging in bargaining with buyers, sellers can share access to buyers for a negotiated transfer. We study how this information exchange affects overall market prices, volumes and...

Allowing for endogenous entry in the traditional Stackelberg setup with product differentiation, leads to reverting of the standard comparative static and limiting results. Unlike in the standard Stackelberg setup with barriers to entry, the leader's profit increases when the differentiation...

We prove that a sufficient condition for the core existence in a n-firm vertically differentiated market is that the qualities of firms' products are equally-spaced along the quality spectrum. This result contributes to see that a fully collusive agreement among firms in such markets is more...

The paper considers a simple oligopoly model where firms know their own and the average pay-off in the industry. Firms choose decision rules for trading. The theory predicts that there are three types of Nash-equilibria in this game (Collusive, Cournot and Stackelberg). Our experiments test the...

This Chapter reviews the theoretical literature on entry games and free entry equilibria. We show that a wide range of symmetric oligopoly models share common comparative statics properties. Individual profits and quantities decrease in the number of firms, and tend to competitive or...

We consider a heretofore unexplored explanation for why platforms, such as Internet service providers and mobile-phone networks, offer plans with download limits: through one of two mechanisms, doing so causes the providers of the content consumer purchase to either reduce their prices or...

We consider a heretofore unexplored explanation for why platforms, such as Internet service providers and mobile-phone networks, offer plans with download limits: through one of two mechanisms, doing so causes the providers of the content consumer purchase to either reduce their prices or...