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Does payoff equity facilitate coordination? A test of Schelling's conjecture

Raúl López-Pérez, Ágnes Pintér () and Hubert Janos Kiss

Journal of Economic Behavior & Organization, 2015, vol. 117, issue C, 209-222

Abstract: Starting from Schelling (1960), several game theorists have conjectured that payoff equity might facilitate coordination in normal-form games with multiple equilibria – the more equitable equilibrium might be selected either because fairness makes it focal or because many individuals dislike payoff inequities, as abundant experimental evidence suggests. In this line, we propose a selection principle called Equity (EQ), which selects the equilibrium in pure strategies minimizing the difference between the highest and smallest money payoff, if only one such equilibrium exists. Using a within-subjects experimental design, furthermore, we study the relative performance of EQ in twelve simple 2×2 coordination games. In many of these games, we find that EQ explains individual behavior better than a large range of alternative theories, including theories of bounded rationality and several other equilibrium selection principles. Yet we also observe that the frequency of EQ play depends on the payoff structure of the game. For instance, EQ play diminishes when the alternative equilibrium is socially efficient and not very unfair (compared with the EQ equilibrium). Our data suggests that equilibrium selection is affected by several factors and that subjects are heterogeneous in this respect, but also that equity is often a crucial factor to understand coordination.

Keywords: Coordination; Equity; Experiments; Inequity aversion; Level-k thinking; Payoff and risk dominance (search for similar items in EconPapers)
JEL-codes: C72 C91 D03 D63 (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1016/j.jebo.2015.06.008

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Journal of Economic Behavior & Organization is currently edited by Houser, D. and Puzzello, D.

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