Este trabajo presenta un modelo de depredación bajo condiciones de información completa y lo integra con un modelo de colusión. La competencia, la colusión y la depredación son estrategias alternativas de las dos empresas que se incluyen en el modelo. Las conclusiones básicas son que hay...

We define a new strategic equilibrium concept -called strong collusion- proof contract -designed to characterize stable communication agreements in games with differential information against non-binding, self enforcing and incentive compatible deviations by coalitions.We then construct a...

If a solution (on a closed family of games) satisfies dummy axiom (DUM) and independance of irrelevant strategies (IIS) then it also satisfies consistency (CONS) (proposition 2.21, Peleg and Tijs, 1996). The converse of this proposition is not true: CONS implies neither DUM nor IIS as shown in...

The Nash equilibrium concept for strategic form games is based on the assumption of expected utility maximization. Reference dependant utility functions (in which utility is determined not only by an outcome, but also by the relationship of the outcome to a reference point) area better predictor...

Correlated equilibria and communication equilibria are useful notions to understand the strategic effects of information and communication. Between these two models, a protocol generates information through communication. We define a secure protocol as a protocol from which no individual may...

In this paper we prove that for generic (non cooperative) voting games under plurality rule an equilibrium that induces a mixed distribution over the outcomes (i.e. with two or more candidates elected with positive probability) is isolated. From that we deduce also that the set of equilibrium...

We present a feasible strategic market mechanism with .nitely many agents whose Nash, semi-strong Nash and coalition-proof Nash equilibria fully im plement the Walrasian equilibria. We define a strategic equilibrium conce pt, called correlated semi-strong equilibrium,and show that the Walrasian...

This paper studies situations in which agents do not initially know the effect of their decisions, but learn from experience the payoffs induced by their choices and their opponent's. We characterize equilibrium payoffs in terms of simple strategies in which an explanation phase is followed by a...

This contribution investigates the effectiveness and welfare implications of fiscal policies in a context of multilateral trade, when traders behave strategically. The present approach deals simultaneously with two aspects of fiscal policies: collecting resources for redistributive purposes and...

A component of Nash equilibria is potentially stable if there exists an evolutionary selection dynamics from a broad class for which the component is asymptotically stable. Anecessary condition for potential stability is that the component's index agrees with its Euler characteristic. Second, if...