Interactive explainer Somanathan, E., Rohini Somanathan, Anant Sudarshan, and Meenu Tewari (2021). Journal of Political Economy, 129(6): 1797–1827
Worker-level data from Indian factories and a national panel of plants: hot days lower output and raise absenteeism, climate control mitigates it, and annual plant output falls with temperature.
Interactive explainer Davis, Lucas W. (2008). Journal of Political Economy, 116(1): 38–81
Mexico City banned most cars from the road one weekday a week. Hourly pollution-monitor data show no improvement in air quality; the evidence points to households buying extra cars.
Interactive explainer Cutler, David, and Grant Miller (2005). Demography, 42(1): 1–22
Using the staggered arrival of filtration and chlorination in major US cities, the paper attributes roughly half of the 1900–1936 mortality decline to clean water.
Interactive explainer Almond, Douglas (2006). Journal of Political Economy, 114(4): 672–712
Cohorts in utero during the 1918 influenza pandemic had lower schooling, income and health decades later — the classic “fetal origins” natural experiment.
Interactive explainer Björkman, Martina, and Jakob Svensson (2009). Quarterly Journal of Economics, 124(2): 735–769
A randomised community-monitoring intervention in 50 Ugandan health dispensaries: report cards and community meetings raised staff effort, use of services and child health.
Interactive explainer Cohen, Jessica, and Pascaline Dupas (2010). Quarterly Journal of Economics, 125(1): 1–45
A randomised pricing experiment at Kenyan prenatal clinics: demand for insecticide-treated nets collapses as the price rises, and charging does not make people use them more.
