Peer Effects on Vaccination Behavior: Experimental Evidence from Rural Nigeria
Peer Effects on Vaccination Behavior: Experimental Evidence from Rural Nigeria
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DOI：
10.1086/700570
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发表时间：
2019-10-01
影响因子：
2
通讯作者：
Takasaki, Yoshito
中科院分区：
文献类型：
--
作者：
Sato, Ryoko;Takasaki, Yoshito
了解社会互动如何以及为什么影响人们的疫苗接种行为对疾病控制很重要。本文首次对发展中国家接种行为的同伴效应进行了因果分析。我们通过随机分配尼日利亚妇女破伤风疫苗接种的现金奖励，在同龄人的疫苗接种行为中创造了外源性变化。朋友之间的疫苗接种大大增加了妇女的接种率。朋友之间的同伴效应是异质性的，根据一个人的信念接种疫苗。我们发现了暗示性的证据，表明女性一起去诊所以及分享疫苗信息的积极同伴效应的机制。
Understanding how and why social interactions influence people's vaccination behavior is important for disease control. This paper conducts the first causal analysis of peer effects on vaccination behavior in developing countries. We created exogenous variations in peers' vaccination behaviors by randomizing cash incentives for tetanus vaccine take-up among Nigerian women. Vaccine take-up among friends strongly increased women's take-up. The peer effects among friends are heterogeneous according to a person's beliefs about vaccination. We find suggestive evidence of mechanisms underlying the positive peer effects that women visit a clinic together as well as share information about the vaccine.