Prospect Theory that was brought up by Nobel economics prize winner, D. Kahneman and his cooperator A. (Tversky, ) considers that value-function curve could affect such behavior like decision-making.

诺贝尔经济学奖得主丹尼尔。卡尼曼及其合作者阿莫斯。特沃斯基的展望理论指出决策行为会受到价值函数形式的影响。

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However, if the cooperator is culpable in the horrific behavior, it is hard to have sympathy for the cooperator simply because he testified against his partner in crime in exchange for a lighter sentence.

FORBES: Why do people have a negative view of cooperators?

She said if news of his arrest were made public, he might be identified as a cooperator.

WSJ: FBI's 'Sabu' Hacker Was a Model Informant