In this paper we discuss the European regulation policy regarding vertical separation in communications and electricity industries. In the electricity sector the discussion concerns ownership unbundling while in communications the regulatory debate is about functional separation. We conclude...

This article focuses on the location decision of firms when competing in a duopoly. Using a spatial Cournot setting, we evaluate what is the optimal location decision of both firms in the linear city. Our original contribution is that firms are dependent on a natural resource input to be able to...

This paper presents a game where the incumbent firm uses the price as a signal about demand size. Without observing the demand, the regulator has to decide if the entry of new firms will be allowed. The game has a pooling Perfect Bayesian Equilibrium in which the incumbent firm chooses the...

In an incomplete regulation framework the Regulator cannot replicate all the possible outcomes by himself since he has no influence on some firms present in the market. When facing asymmetric information regarding the regulated firm’s costs, it may be better for the Regulator to allow the...

We study the impact of vertical separation between an upstream firm and its subsidiary, which competes in the retail market with an independent firm, with the incentive to invest in network upgrade. This question is discussed under two alternative regimes concerning the price of the vital input...