信任賽局中報酬、合作係數、對手類型及賽局內容對決策的影響

Abstract

本研究以囚犯困境賽局及信任賽局來進行實驗，共有180位受試者，分成九種不同的實驗內容：以對手行為（利他、互惠、自利）、合作係數值（高、中、低）為組間變項；報酬及賽局內容（利他、互惠、自利）為組內變項。探討決策是否受對手的選擇影響，利用重複量數的統計方法比較不同情況下的差異，找出變項對決策的影響。報酬高比報酬低時容易自私，對手類型的不同也會影響自己的選擇，信任係數值高的賽局會比較容易合作，賽局內容也會影響自己的決策。

The purpose of this study was to investigate the effects of payoff, cooperation index, context and game type in trust game. One hundred and eighty five students were randomly assigned to one of the 3 cooperation index (high, medium, or low) X 3 context (selfish, reciprocal, or altruistic) experimental conditions. The experiment included prisoner’s dilemma and trust games. Players played 9 (cooperation index) X 2 (payoff) prisoner’s dilemma games , 3 (payoff) X 6 (cooperation index) trust games which the player made choice after opponent, and 3 (payoff) X 3 (game type ) X 3(cooperation index) trust games which the player made choice first. Results showed that when payoff was high, the player would be selfish. When the context was selfish the player would make an internecine decision to revenge. The player would be more cooperative on high cooperation index game than low cooperation index game. The player seemed not be affected by previous games and previous opponents.