This paper introduces the Werden-Froeb Index (WFI) to assist in evaluating merger-specific efficiencies in horizontal … mergers. The index measures the weighted average reduction in marginal costs required to restore pre-merger equilibrium prices … and quantities after the (full or partial) merger is consummated. The WFI is well defined, objective and robust, and it …

exact amount of cost efficiency/inefficiency that will result from the merger. Nevertheless, the key element of the model is … always have incentives to merge, irrespective of cost uncertainty, while a merger without role redistribution is ex ante … merger between leaders always enhances welfare if participants have incentives to merge, such that private and collective …

Structure on Cournot-Nash Equilibrium, 1983) about merger profitability are sensitive to the assumption of pre-merger Cournot …

when taking merger decisions. In practice, firms and competition authorities cannot know exact future efficiency gains …, prior to merger consummation. This paper analyzes horizontal mergers when the output decision-making process is sequential … of "Merger Approval", the paper emphasizes the timing of regulatory intervention and distinguishes two different merger …

This Essay provides an overview of U.S. antitrust merger practice in addressing efficiencies both in terms of actual … practitioners play during the merger process in shaping whether or not the agencies will litigate a case, or the types of issues … that end in litigation. Moreover, the article does not sufficiently analyze merger enforcement decisions at the agencies …

economic efficiency, nor to address any social or political factor. Rather, the overriding intent behind the merger laws was to … analyze mergers with this goal in mind. Doing so challenges the fundamental underpinnings of Williamsonian merger analysis … would require substantially more efficiencies to justify an otherwise anticompetitive merger. We demonstrate this by …

antitrust enforcement. It shows that empirical economic studies, experimental results, real-world examples, and economic theory … effective, whether through purposive or non-purposive conduct. This supports a structural merger policy, by which mergers …

post-merger R&D efforts (including lower expenditure). SIEIC is distinct from the mainstream unilateral effects theory of … applied in merger cases? This paper is divided into three sections. In Section I, the SIEIC theory of harm is described and … recently, the European Commission (“Commission”) used its powers under the EU Merger Regulation (“EUMR”) to impose remedies in …

different competition policy measures: merger control, antitrust investigations on abuse of dominance, and changes of import …

, market power, and post-merger price predictions. I show that with positive network externalities, traditional methods will … underestimate unobserved marginal costs and will overstate both platform market power and post-merger pricing predictions. I also …