Dominance rationality: A unified approach

B-Tier
Journal: Games and Economic Behavior
Year: 2020
Volume: 119
Issue: C
Pages: 189-196

Authors (2)

Hillas, John (not in RePEc) Samet, Dov (Tel Aviv University)

Score contribution per author:

1.005 = (α=2.01 / 2 authors) × 1.0x B-tier

α: calibrated so average coauthorship-adjusted count equals average raw count

Abstract

There are four types of dominance depending on whether domination is strict or weak and whether the dominating strategy is pure or mixed. Letting d vary over these four types of dominance, we say that a player is d-dominance rational when she does not play a strategy that is d-dominated relative to what she knows. For weak dominance by a mixed strategy, Stalnaker (1994) introduced a process of iterative maximal elimination of certain profiles that we call here flaws. We define here, analogously, d-flaws for each type of dominance d, and show that for each d, iterative elimination of d-flaws is order independent. We then show that the characterization of common knowledge of d-dominance rationality is the same for each d. A strategy profile can be played when d-dominance rationality is commonly known if and only if it survives an iterative elimination of d-flaws.

Technical Details

RePEc Handle
repec:eee:gamebe:v:119:y:2020:i:c:p:189-196
Journal Field
Theory
Author Count
2
Added to Database
2026-01-29