In a two-country international trade model with oligopolistic competition, we study the conditions on market structure and trade costs under which a merger policy designed to benefit domestic consumers is too tough or too lenient from the viewpoint of the foreign country. Calibrating the model...

Using an aggregative games approach, we analyze horizontal mergers in a model of multiproduct-firm price competition with nested CES or nested logit demands. We show that the Herfindahl index provides an adequate measure of the welfare distortions introduced by market power, and that the induced...

We study the social welfare implications of early termination fees in the US wireless industry. It is hypothesized that the elimination of long-term contracts at the end of 2015 was a transition from one market equilibrium to another. We use a theoretical model to illustrate that the endogenous...