1. Recursive Adversarial Reasoning in the Rock, Paper, Scissors Game
- Author
-
Brockbank, Erik and Vul, Edward
- Subjects
adaptive reasoning ,adversarial reasoning ,non-cooperative games ,rock paper scissors - Abstract
In this study, we investigate people’s ability to predict andadapt to the behavior of others in order to make plans of theirown, a cornerstone of cooperative and competitive behavior.Participants played 300 rounds of rock, paper, scissors againstanother human player. We investigate the degree to which par-ticipants are able to identify patterns in their opponent’s be-havior in order to exploit them in subsequent rounds. We findstrong evidence that participants exploit their opponents overthe course of 300 rounds, suggesting that people identify de-pendencies in their opponent’s move choices during the game.Nonetheless, analysis of dependencies across participant movechoices reveals that people exhibit a number of regularities intheir own moves. Based on these dependencies, we argue thatparticipants are far from optimal in their exploiting, suggestingthat there are substantial constraints on people’s ability to iden-tify and adapt to patterned opponent behavior across repeatedinteractions.
- Published
- 2020