Optimal multi‐action treatment allocation: A two‐phase field experiment to boost immigrant naturalization

Achim Ahrens, Alessandra Stampi‐Bombelli, Selina Kurer, Dominik Hangartner
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Abstract

SummaryResearch underscores the role of naturalization in enhancing immigrants' socio‐economic integration, yet application rates remain low. We estimate a policy rule for a letter‐based information campaign encouraging newly eligible immigrants in Zurich, Switzerland, to naturalize. The policy rule assigns one out of three treatment letters to each individual, based on their observed characteristics. We field the policy rule to one‐half of 1717 immigrants, while sending random treatment letters to the other half. Despite only moderate treatment effect heterogeneity, the policy tree yields a larger, albeit insignificant, increase in application rates compared with assigning the same letter to everyone.
优化多重行动治疗分配:促进移民入籍的两阶段实地实验
摘要研究强调了入籍在促进移民融入社会经济方面的作用,但申请率仍然很低。我们估算了瑞士苏黎世鼓励符合条件的新移民入籍的政策规则。政策规则根据观察到的每个人的特征,从三封处理信件中为其分配一封。我们对 1717 名移民中的二分之一采用了该政策规则,而对另一半随机发送了处理信件。尽管只有适度的治疗效果异质性,但与向每个人分配相同的信件相比,政策树对申请率的提高更大,尽管并不显著。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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