Modeling reciprocal behavior in human bilateral negotiation

Ya'akov Gal, Avi Pfeffer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

33 Scopus citations

Abstract

Reciprocity is a key determinant of human behavior and has been well documented in the psychological and behavioral economics literature. This paper shows that reciprocity has significant implications for computer agents that interact with people over time. It proposes a model for predicting people's actions in multiple bilateral rounds of interactions. The model represents reciprocity as a tradeoff between two social factors: the extent to which players reward and retaliate others' past actions (retrospective reasoning), and their estimate about the future ramifications of their actions (prospective reasoning). The model is trained and evaluated over a series of negotiation rounds that vary players' possible strategies as well as their benefit from potential strategies at each round. Results show that reasoning about reciprocal behavior significantly improves the predictive power of the model, enabling it to outperform alternative models that do not reason about reciprocity, or that play various game theoretic equilibria. These results indicate that computers that interact with people need to represent and to learn the social factors that affect people's play when they interact over time.

Original languageEnglish
Title of host publicationAAAI-07/IAAI-07 Proceedings
Subtitle of host publication22nd AAAI Conference on Artificial Intelligence and the 19th Innovative Applications of Artificial Intelligence Conference
Pages815-820
Number of pages6
StatePublished - 28 Nov 2007
Externally publishedYes
EventAAAI-07/IAAI-07 Proceedings: 22nd AAAI Conference on Artificial Intelligence and the 19th Innovative Applications of Artificial Intelligence Conference - Vancouver, BC, Canada
Duration: 22 Jul 200726 Jul 2007

Publication series

NameProceedings of the National Conference on Artificial Intelligence
Volume1

Conference

ConferenceAAAI-07/IAAI-07 Proceedings: 22nd AAAI Conference on Artificial Intelligence and the 19th Innovative Applications of Artificial Intelligence Conference
Country/TerritoryCanada
CityVancouver, BC
Period22/07/0726/07/07

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