Dynkin Games with Incomplete and Asymmetric Information

Games with Incomplete Information

1. Game theory and classical economics. Game theory is a theory of strategic interaction. That is to say, it is a theory of rational behavior in social situations in which each player has to choose his moves on the basis of what he thinks the other players’ countermoves are likely to be. After preliminary work by a number of other distinguished mathematicians and economists, game theory as a sy...

Bayesian Games: Games with Incomplete Information

Glossary Bayesian game An interactive decision situation involving several decision makers (players) in which each player has beliefs about (i. e. assigns probability distribution to) the payoff relevant parameters and the beliefs of the other players. State of nature Payoff relevant data of the game such as payoff functions, value of a random variable, etc. It is convenient to think of a state...

Dynamic Games with Incomplete Information

Sequential Games with Incomplete Information

Consider the following strategy profile, in which 1 plays a, and 2 plays L. This is a Nash equilibrium. Because there are no subgames, this is also a subgame-perfect Nash equilibrium. But it is a silly equilibrium, because if 2 ever found herself in a situation where she has to move, she would want to play R no matter what her beliefs regarding where she is “inside” that information set. [There...

Dynkin games with heterogeneous beliefs

We study zero-sum optimal stopping games (Dynkin games) between two players who disagree about the underlying model. In a Markovian setting, a verification result is established showing that if a pair of functions can be found that satisfies some natural conditions then a Nash equilibrium of stopping times is obtained, with the given functions as the corresponding value functions. In general, h...