Mar. 13 (10:00-11:00) room C.510
Helmuts Azacis (Cardiff University, UK, and Corvinus)
Unmediated communication in games with (in)complete information: the 4-player case
We show that every rational correlated equilibrium of any finite game with complete information and four players can be implemented as a sequential equilibrium of a universally
extended game, in which before choosing actions in the underlying game, players privately exchange cheap talk messages. In particular, we improve on the result of Barany (1992) and Gerardi (2004). Our result can be generalized to games with incomplete information, i.e., to the set of regular communication equilibria.
The talk is based on joint work with Marie Laclau and Peter Vida.