Following the structure of many commodity markets, we consider a few large firms and a competitive fringe of many small suppliers choosing quantities in an infinite-horizon setting subject to demand shocks. We show that a collusive agreement among the large firms may not only bring an output...

It is widely accepted that one of the most important characteristics of an effective climate policy is to provide firms with credible incentives to make long-run investments in R&D that can drastically reduce emissions. Recognizing that a government may be tempted to revise its policy design...

In an effort to reduce air pollution and congestion, Latin American cities have experimented with different policies to persuade drivers to give up their cars in favor of public transport. Two notable examples are the driving restriction program introduced in Mexico-City in November of 1989...

We study the static and dynamic implications of non-linear pricing schemes (i.e., bundling) for otherwise unrelated products but for multimarket contact. Bundling is always present in competition but unlikely in a cartel agreement. Although it brings extra profits to the cartel –sometimes...