Strategic Type Spaces
Olivier Gossner, Rafael Veiel
econ.TH cs.CL
Abstract
We provide a strategic foundation for information: in any given game with incomplete information we define strategic quotients as information representations that are sufficient for players to compute best-responses to other players. We prove 1/ existence and essential uniqueness of a minimal strategic quotient called the Strategic Type Space (STS) in which a type is given by an interim correlated rationalizability hierarchy and represents a set of beliefs over other players' types and nature that rationalize this hierarchy and 2/ that the minimal STS has a recursive structure that is captured by a finite automaton.
Topics
Classified with taxonomy v2 on Sat, 5 Sept 2026.