Social Exclusion and Social Preferences: Evidence from Colombia’s Leper Colony
通过哥伦比亚麻风病隔离区的实地实验，发现被社会排斥群体的后代对本地人和有类似遭遇的外来者表现出利他行为，但对历史上排斥他们的医生群体不信任，历史叙事是代际传递的部分原因。
This paper explores the intergenerational consequences of social exclusion on prosociality. A lab-in-the-field approach in the historical region of Colombia’s leper colony reveals that descendants of socially excluded individuals are locally altruistic and extend such altruism to outsiders who have undergone similar circumstances. These individuals also display mistrust toward those who have, historically, been exclusionary—in this case, doctors. The content of historical narratives shared by ancestors who were excluded, which emphasize the endured mistreatment and doctors’ historical misinformation, is one mechanism that partially explains the intergenerational patterns.