Nous étudions les jeux stochastiques à somme nulle où les joueurs n'observent pas nécessairement les actions choisies par leur adversaire. Nous supposons seulement que chacun des joueurs observe au moins l'état courant du jeu, ainsi que sa propre action. L'article propose un traitement...

Every finite extensive-form game with perfect information has a subgame-perfect equilibrium. In this note we settle to the negative an open problem regarding the existence of a subgame-perfect <InlineEquation ID="IEq4"> <EquationSource Format="TEX">$$\varepsilon $$</EquationSource> <EquationSource Format="MATHML"> <math xmlns:xlink="http://www.w3.org/1999/xlink"> <mi mathvariant="italic">ε</mi> </math> </EquationSource> </InlineEquation>-equilibrium in perfect information games with infinite horizon and Borel...</equationsource></equationsource></inlineequation>

We analyze a toy class of two-player repeated games with two-sided incomplete information. In our model, two players are facing independent decision problems and each of them holds information that is potentially valuable to the other player. We study to what extent, and how, information can be...

We study a two-player one-arm bandit problem in discrete time, in which the risky arm can have two possible types, high and low, the decision to stop experimenting is irreversible, and players observe each other's actions but not each other's payoffs. We prove that all equilibria are in cutoff...