Analysis of irrational decision-making scenarios toward achieving intervention system considering human behavioral characteristics

Abstract

Humans are capable of making decisions with limited cognitive resources for real-world problems, but cognitive biases can preclude optimal choices. Therefore, efforts (interventions) are made to modify nonoptimal behavior by presenting humans with optimal choices. However, it has been observed that humans generally tend to ignore interventions. Therefore, we devised a "Simplified Black Jack" game in which humans are more likely to recognize optimal strategies, and attempted to intervene only when players took non-optimal strategies. In this study, we investigated situations in which humans make irrational decisions in order to achieve an intervention system that is more acceptable to humans. The results showed that the number of cards in the game affects decision making in situations where the win rate is observationally similar. Specifically, it was shown that the more cards in the game, the stronger the tendency to play the game, and if the number of cards in the game was the same for the player and the opponent, the stronger the tendency not to play the game. It is expected that an intervention system that takes such behavioral tendencies into account will be realized.