We analyze oligopolistic third-degree price discrimination relative to uniform pricing when markets are always covered. Pricing equilibria are critically determined by supply-side features such as the number of firms and their marginal cost differences. It follows that each firm's Lerner index...

We analyze oligopolistic third-degree price discrimination relative to uniform pricing when markets are always covered. Pricing equilibria are critically determined by supply-side features such as the number of firms and their marginal cost differences. It follows that each firm's Lerner index...

We analyze oligopolistic third-degree price discrimination relative to uniform pricing when markets are always covered. Pricing equilibria are critically determined by supply-side features such as the number of firms and their marginal cost differences. It follows that each firm’s Lerner index...

We analyze oligopolistic third-degree price discrimination relative to uniform pricing when markets are always covered. Pricing equilibria are critically determined by supply-side features such as the number of firms and their marginal cost differences. It follows that each firm's Lerner index...

We analyze Bertrand duopoly competition in markets with network effects and consumer switching costs. Depending on the ratio of switching costs to network effects, our modelerates four different market patterns: monopolization and market sharing which can be either monotone or alternating. A...

We investigate how remedies in merger control affect information acquisition by an antitrust agency. We identify conditions under which an ''extreme options'' regime which does not allow for remedies improves information acquisition by the agency which increases consumer surplus. The legislator...

We re-examine the view that a ban on price discrimination in input markets is particularly desirable in the presence of buyer power. This argument crucially depends on an inverse relationship between downstream firms’ profits and the uniform input price. Assuming different input efficiencies...

We examine how competition in international markets affects a union's choice of wage regime which can be either uniform or discriminatory. Firms are heterogenous with regard to international competition. When unions choose their wage regimes sequentially, a discriminatory outcome becomes more...

We analyze the role of consumer expectations in a Hotelling model of price competition when products exhibit network effects. Expectations can be strong (stubborn), weak (price-sensitive) or partially stubborn (a mix of weak and strong). As a rule, the price-sensitivity of demand declines when...

This paper examines how the deepening of market integration – a characteristic feature of the so-called globalization – affects the assessment of the competitive effects of (horizontal) mergers. We distinguish between supply-side and demand-side market integration and we argue that the...