We set up a model where two retailers compete downstream and buy their inputs from a single producer. Retailers may collude downstream, when fixing the retail price and cooperate upstream by jointly negotiating the wholesale price with the producer. We find that purchase cooperation renders...

This article investigates how antitrust agencies should structure the disclosing of information about effciency gains from interested parties (merging .rms, and competitors) in merger control. We analyze the particular case of a horizontal merger withdanger of foreclosure, where welfare can...

El artículo realiza una revisión de la literatura teórica sobre la forma en que los programas de amnistía o delación compensada afectan la estabilidad de los carteles y permiten su detección y disuasión. Sobre la base de las principales contribuciones, se presenta un modelo unificado que...