TY - GEN
T1 - Distance-based equilibria in normal-form games
AU - Acar, Erman
AU - Meir, Reshef
N1 - Conference issue: AAAI-20 Technical Tracks 2, section: AAAI Technical Track: Game Theory and Economic Paradigms.
PY - 2020/4/3
Y1 - 2020/4/3
N2 - We propose a simple uncertainty modification for the agent model in normal-form games; at any given strategy profile, the agent can access only a set of “possible profiles” that are within a certain distance from the actual action profile. We investigate the various instantiations in which the agent chooses her strategy using well-known rationales e.g., considering the worst case, or trying to minimize the regret, to cope with such uncertainty. Any such modification in the behavioral model naturally induces a corresponding notion of equilibrium; a distance-based equilibrium. We characterize the relationships between the various equilibria, and also their connections to well-known existing solution concepts such as Trembling-hand perfection. Furthermore, we deliver existence results, and show that for some class of games, such solution concepts can actually lead to better outcomes.
AB - We propose a simple uncertainty modification for the agent model in normal-form games; at any given strategy profile, the agent can access only a set of “possible profiles” that are within a certain distance from the actual action profile. We investigate the various instantiations in which the agent chooses her strategy using well-known rationales e.g., considering the worst case, or trying to minimize the regret, to cope with such uncertainty. Any such modification in the behavioral model naturally induces a corresponding notion of equilibrium; a distance-based equilibrium. We characterize the relationships between the various equilibria, and also their connections to well-known existing solution concepts such as Trembling-hand perfection. Furthermore, we deliver existence results, and show that for some class of games, such solution concepts can actually lead to better outcomes.
UR - http://www.scopus.com/inward/record.url?scp=85099881261&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85099881261&partnerID=8YFLogxK
U2 - 10.1609/aaai.v34i02.5540
DO - 10.1609/aaai.v34i02.5540
M3 - Conference contribution
AN - SCOPUS:85099881261
T3 - Proceedings of the AAAI Conference on Artificial Intelligence
SP - 1750
EP - 1757
BT - Proceedings of the AAAI Conference on Artificial Intelligence [2020]
PB - AAAI Press
T2 - 34th AAAI Conference on Artificial Intelligence, AAAI 2020
Y2 - 7 February 2020 through 12 February 2020
ER -