In markets where product quality is important, more than one characteristic is usually necessary for producers to define product quality. Standard theory maintains that: (i) in a duopoly there will be a quality leader no matter whether the product can incorporate one or two vertical attributes;...

In markets where product quality is important, more than one characteristic is usually necessary to de fine product quality. Standard models maintain that: (i) in a duopoly there will be a quality leader no matter whether the product can incorporate one or two vertical attributes; (ii)...

The choice between quantity and price in order to stabilize collusion is modeled here. It is shown that this relocates the prisoners’ dilemma backwards, from the market stage to the stage where the market variable is chosen in order to sustain collusion, and where discount rates appear as the...

We characterize the interplay between firms’ decision in terms of product differentiation and the nature of their ensuing market behaviour. We prove the existence of a non-monotone relationship between firms’ decision at the development stage and their intertemporal preferences.

The authors characterize the interplay between firms' decisions in terms of either horizontal or vertical product differentiation and their ensuing price behavior, be that collusive or not. They prove the existence of a non-monotone relationship between firms' decisions at the development stage...

This paper tackles the issue of choosing roles in duopoly games. First, it is shown that the two necessary (and sufficient, if both satisfied) conditions for sequential play to emerge at equilibrium are that both leader and follower are at least weakly better off than under simultaneous play....

We investigate the possibility of using public firms to regulate polluting emissions in a Cournot oligopoly where production generates pollution and public firms are less efficient than private ones. In a differential game we compare (i) the Markov-Perfect Nash equilibrium under social planning;...

We investigate the possibility for two vertically related firms to at least partially collude on the wholesale price over an in.nite horizon to mitigate or eliminate the e¤ects of double marginalisation, thereby avoiding contracts which might not be enforceable. We characterise alternative...

We revisit the adoption of voluntary export restraints (VERS) in the differential Cournot game with sticky price and intraindustry trade by Dockner and Haug (1991). The analysis relies on linear and nonlinear feedback strategies, to encompass the special cases considered in Fujiwara (2010) and...