Program

Oral
OR26-71-5

Effect of Status of Other Player and Observability in One-Shot Prisoner's Dilemma Game

[Speaker] Shishido, Takt:1
1:Musashino University (Japan)

Indirect reciprocity theory assumes that the observability of individual's behaviors increases his/her altruism, because his/her cooperative reputation can be reciprocated by cooperative responses by others. We can expect that other people's characteristics plays an important role in this process, because people often have a stronger concern with building reputation among particular types of people over others; however, this effect had not clearly been investigated. This study focused on the effect of other people's status which is defined as the extent to which they are respected or liked. We investigated the choice of 152 participants in the one-shot prisoner's dilemma game and found that only in the condition in which their choice was observable from the other player holding high status, the level of cooperation was significantly higher. This result showed that neither observability nor other player's status can individually increase individual's altruism, but both are simultaneously required.
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