| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
Social cooperation is a universal feature of human societies. Cheater detection is inevitable for the evolution of social cooperation , because long-term cooperation would be successful only if individuals could detect and avoid cheaters during social interactions. However, cheater detection is far from perfect in everyday situations. The present study demonstrated that cheaters in the social exchange skillfully skillfully display a fake smile to increase facial trustworthiness and exploit others in social interactions, ultimately avoiding cheater detection.
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