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Equilibrium cycle: A Dynamic equilibrium

delete2026-03-01
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PRE
AI
W
Walunj, Tushar Shankar
S
Singhal, Shiksha *
K
Kavitha, Veeraruna
N
Nair, Jayakrishnan
DOI:10.1016/j.geb.2026.02.007delete
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Abstract

Abstract

En 中文
In this paper, we introduce a novel equilibrium concept, called the equilibrium cycle, which seeks to capture the outcome of oscillatory game dynamics. Unlike the (pure) Nash equilibrium, which defines a fixed point of mutual best responses, an equilibrium cycle is a set-valued solution concept that can be demonstrated even in games where best responses do not exist (for example, in discontinuous games). The equilibrium cycle identifies a Cartesian product set of action profiles that satisfies three important properties: stability against external deviations, instability against internal deviations, and minimality. This set-valued equilibrium concept generalizes the classical notion of the minimal curb set to discontinuous games. In finite games, the equilibrium cycle is related to strongly connected sink components of the best response graph.
Keywords:
Equilibrium cycle
Non-cooperative games
Discontinuous games
Equilibrium concept
Oscillatory game dynamics
Curb sets

Journal

G
Games and Economic Behavior
IF:
1
Papers:
84
Citations:
0

Organization

I
indian institute of technology (iit) - bombay
Scholars:
6.0K
Papers: 5.6K
Citations: 0
I
indian institute of technology system (iit system)
Scholars:
9.5W
Papers: 9.9W
Citations: 93