這種男性之間為了爭奪伴侶而表現出的競爭關係能否用來提高他們在公益事業上的貢獻呢?2012年發表在《英國心理學期刊》(British Journal of Psychology)上的一篇論文[3]測試了這個想法。在實驗中,研究者總共召集了130名學生(平均年齡21歲,男女各半)作為實驗對象。在實驗中,研究人員發給每名學生3英鎊(約合30人民幣),並告訴學生他們可以把任意數量的錢留著自己用,並把剩下的錢存進一個公共賬戶(都在計算機上單獨操作)。在所有人分配完手頭的錢後,研究人員會統計公共賬戶的總數額,然後將這個數字再平均分給隨機抽出的少數幸運者。
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