There is a growing concern that U.S. merger control may have been too lenient, but empirical evidence remains limited. Event studies have been used as one method to acquire empirical insights into the competitive effects of mergers. However, existing work suffers from strong identifying...

Standard analysis of mergers in oligopolies along the lines of the popular Farrell-Shapiro-Framework (FSF) relies regarding its policy conclusions sensitively on the assumption that rational agents will only propose privately profitable mergers. If this assumption held, a positive external...

Standard analysis of mergers in oligopolies along the lines of the popular Farrell-Shapiro Framework (FSF) relies, regarding its policy conclusions, on the assumption that rational agents will only propose privately profitable mergers. If this assumption were held, a positive external effect of...

Numerous recently uncovered cartels operated along the supply chain, with firms at one end facilitating collusion at the other - hub-and-spoke arrangements. These cartels are hard to rationalize because they induce double marginalization and higher costs. We examine Canada's alleged bread cartel...

We study cartels that operated in the US generic drug industry, leveraging quarterly Medicaid data from 2011-2018 and a difference-in-differences approach comparing the evolution of prices of allegedly collusive drugs with a group of competitive control drugs. Our analysis highlights (i) the...

Brand-name pharmaceutical companies often file lawsuits against generic drug manufacturers that challenge the monopoly status of patent-protected drugs. Institutional horizontal shareholdings, measured by the generic shareholders' ownership in the brand-name company relative to their ownership...

In this paper, we comment on the debate about guidelines for Art. 102 TFEU in the face of the challenges brought by digital ecosystems and abuse of dominance in related markets. We take the perspective of dynamic competition economics and derive four recommendations for the future enforcement of...

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...