Gendron-Carrier et al. (2022) studies the effect of subway openings on urban air pollution. The authors find a null average effect, but a negative effect in cities with high initial pollution. In this comment, I perform several robustness checks on the negative effect for high-pollution cities,...

The paper estimates the effect that changes in household vulnerability have on citizens' participation in clientelist relationships. The authors exploit two sources of variation in household vulnerability: rainfall shocks, and a randomized intervention that provided cisterns in drought-prone...

Bobonis, Gertler, Gonzalez-Navarro, and Nichter (2022) conducts a randomized control trial in rural Northeast Brazil designed to reduce the vulnerability of sampled households. In this development intervention, we constructed residential water cisterns across 425 neighborhood clusters in 40...