This paper examines the long-term impact of refugee camps on the health of local residents in Tanzania. Taking height-for-age z-score (HAZ) as a proxy for health, the paper exploits the fact that different birth cohorts were exposed to different stages of the camps’ lifecycle. Temporal variation through birth cohorts is combined with geographic variation in a difference-in-difference estimation approach. First, the paper examines the generation that were children at the opening of the camps and are now adults (as of 2012). It finds a negative and localised health effect that has persisted into adulthood. The result is comparable to a 2.9%–5.9% reduction in adult hourly earnings. Second, this paper compares the subsequent generation that was born once the camps were already in operation, and those born after camps closed. It finds no observable difference in the HAZ score between those born during camps operation and in the post-camp period.

本文研究了难民营对坦桑尼亚当地居民健康的长期影响。本文以年龄高度z分数（HAZ）代表健康状况，利用了以下事实：不同的出生队列处于营地生命周期的不同阶段。通过出生队列的时间变化与地理变化相结合，采用了差异估计方法。首先，本文考察了营地开放时的儿童和现在成年的这一代（截至2012年）。它发现负面影响和局部健康影响一直持续到成年。结果相当于成人每小时收入减少了2.9％–5.9％。其次，本文比较了营地已经运营后出生的后代和营地关闭后出生的后代。