Toxic Roads
研究了埃塞俄比亚大规模道路建设对婴儿死亡率的影响，发现每增加一条道路使婴儿死亡概率提高3个百分点，证据表明道路建设中的废物暴露是主要原因。
Abstract This paper explores road construction’s unintended consequences on health. Drawing evidence from a large-scale road development program in Ethiopia, we investigate the impact of road construction on infant mortality. Along major routes, we find that an additional road increases the probability of infant mortality by 3 percentage points. The empirical evidence suggests that waste exposure associated with road construction is a likely explanation for our findings. A large set of robustness checks rules out confounding factors such as migration and urbanization, and alternative mechanisms such as traffic pollution.