We analyze the impact of passive partial ownership (PPO) on horizontal mergers. We show that antitrust authorities ignoring the effects of previous PPO acquisitions invite sneaky takeovers: a PPO is strategically used prior to a full takeover to get a merger approved which is in fact detrimental...

We re-examine the common wisdom that cross-border mergers are the most effective merger strategy for firms facing powerful unions. In contrast, we obtain a domestic merger outcome whenever firms are sufficiently heterogeneous (in terms of productive efficiency and product differentiation). A...

We analyze horizontal mergers when the acquirer holds a passive partial ownership stake (PPO) in the target firm prior to the merger. We show that a PPO reduces the minimal synergy level necessary to make a merger beneficial for consumers. It follows that an antitrust authority ignoring existing...

This paper examines how different unionisation structures affect firms' innovation incentives and industry employment. We distinguish three modes of unionisation with increasing degree of centralisation: (1) "Decentralisation" where wages are determined independently at the firm-level, (2)...

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...

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 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...

Katz (1987), DeGraba (1990), and Yoshida (2000) have formulated theories that price discrimination bans in intermediary goods markets tend to have positive effects on allocative, dynamic and productive efficiency, respectively. We show that none of these results is robust vis-à-vis endogenous...

This Paper examines how different unionization structures affect firms' innovation incentives and industry employment. We distinguish three modes of unionization with increasing degree of centralization: (1) ‘decentralization’ where wages are determined independently at the firm-level, (2)...

This paper examines the free-market and socially-optimal outcomes in a dynamic oligopoly model with R&D spillovers. First-best optimal subsidies to R&D are higher when firms play strategically against each other, but lower when they cooperate on R&D (at least with high spillovers) and when they...