Three billion people around the world lack access to affordable and reliable clean cooking energy. The case for clean energy has largely been built around health and or environmental benefits, neglecting potentially sizeable benefit(s): when households have clean energy, they can save time and reduce drudgery. Clean energy can reduce poverty. But how large are time savings from the adoption and use of improved cookstoves (ICS)? Do these benefits accrue especially to women?

This study is one of the first to present causal evidence of the morbidity costs of fine particulates (PM2.5) for all age cohorts in a developing country, using individual-level health spending data from a basic medical insurance program in Wuhan, China. Our instrumental variable (IV) approach uses thermal inversion to address potential endogeneity in PM2.5 concentrations and shows that PM2.5 imposes a significant impact on healthcare expenditures.