The social costs of pollution and climate change hinge critically on humans' ability to adapt. Based on transaction records from the world's largest payment network, this research compiles daily travel flows and documents that China's rapid expansion of high-speed railways (HSR) facilitates the...

We quantify the commute time savings associated with work from home, drawing on data for 27 countries. The average daily time savings when working from home is 72 minutes in our sample. We estimate that work from home saved about two hours per week per worker in 2021 and 2022, and that it will...

We combine satellite-based pollution data and test scores from over 10,000 U.S. school districts to estimate the relationship between air pollution and test scores. To deal with potential endogeneity we instrument for air quality using (i) year-to-year coal production variation and (ii) a...

How responsive to health shocks are healthcare systems in the developing world? Developing countries are known to have both lower levels of hospital infrastructure and serious health shocks driven by air pollution. These shocks are transitory and may be marginal relative to other health demands,...

Little is known about how pollution impacts worker health and workplace safety. This paper leverages high-frequency, plausibly exogenous variation in wildfire smoke to estimate the impact of pollution on workplace injuries. Our analysis draws on unique data we construct through linking...

Air pollution is known to negatively affect a range of health outcomes. Wildfire smoke is an increasingly important contributor to air pollution, yet extreme smoke events are highly salient and could induce behavioral responses that alter health impacts. We combine geolocated data covering the...

Ground-level ozone has been shown to have significant negative health externalities from short-term exposure, and as such has been regulated by the U.S. Clean Air Act since the 1970s. Ozone is not emitted directly; instead formation occurs due to a complex Leontief-like combination of air...

Although pollution is widespread, there is little evidence about how it might harm children's long run outcomes. Using the detailed, geocoded data that follows national representative cohorts of children born to the National Longitudinal Survey of Youth respondents over time, I compare siblings...