This paper examines the interplay of environmental policies with trade policies (tariffs) in a context of bilateral trade and imperfect competition.

This paper studies the incentives of short-lived agents to acquire costly private information in the presence of public signals arising from market interaction. It characterizes the social learning process, that is the revelation of information by public signals, and the information...

I present an overview of what has been the theoretical analysis of auctions in the last two decades. The goal is to offer a systematic exposition of the main issue addressed by this literature with more emphasis on why than on what. For that, I present a unified framework that takes the reader...

In this paper we study the optimal ex-ante merger policy in a model where merger proposals are the result of strategic bargaining among alternative candidates. We allow for firm asymmetries and, in particular, we emphasize the fact that potential synergies generated by a merger may vary...

The Millennium Declaration (2000) set as one of its targets a substantial reduction in child mortality. This paper studies whether the massive increase in development aid can account for part of the reduction in child mortality observed in developing countries since the year 2000. To do so, we...

We propose and analyze a new solution concept, the R solution, for three-person, transferable utility, cooperative games. In the spirit of the Nash Bargaining Solution, our concept is founded on the predicted outcomes of simultaneous, two-party negotiations that would be the alternative to the...

Aid for fighting infectious and parasitic diseases has had a statistically significant role in the under-five mortality reduction in the last decade. Point estimates indicate a country average reduction of 1.4 deaths per thousand under fives live-born attributable to aid at its average level in...

In a micro-founded model, we derive novel incentives for a monopoly search engine to distort its organic and its sponsored results on searches for online content and offline products. Distorting organic results towards content publishers with less effective display advertising and/or distorting...