Do urban children live more segregated lives than urban adults? Using cellphone location data and following the 'experienced isolation' methodology of Athey et al. (2021), we compare the isolation of students over the age of 16--who we identify based on their time spent at a high school--and...

The fivefold increase in opioid deaths between 2000 and 2017 rivals even the COVID-19 pandemic as a health crisis for America. Why did it happen? Measures of demand for pain relief - physical pain and despair - are high but largely unchanging. The primary shift is in supply, primarily of new...

Which Americans experience the worst infrastructure? What are the costs of living with that infrastructure? We measure road roughness throughout America using vertical acceleration data from Uber rides across millions of American roads. Our measure correlates strongly and positively with other...

Contents; Preface; Postmortem for a Housing Crash / Edward L. Glaeser and Todd Sinai; 1. House Price Moments in Boom-Bust Cycles / Todd Sinai; 2. The Supply Side of the Housing Boom and Bust of the 2000s / Andrew Haughwout, Richard W. Peach, John Sporn, and Joseph Tracy; 3. A Spatial Look at Housing...

Pigouvian taxes and user fees can address environmental externalities and efficiently fund transportation infrastructure, but these policies may place burdens on poorer households. This paper presents new evidence on the distributional consequences of the gasoline tax, bus and light rail charges...

Americans travel 7 to 9 miles on average for shopping and recreational activities, which is far longer than the 15-minute (walking) city advocated by ecologically-oriented urban planners. This paper provides a comprehensive analysis of local trip behavior in US cities using GPS data on...

Equally educated people are healthier if they live in more educated places. Every 10 percent point increase in an area's share of adults with a college degree is associated with a decline in all-cause mortality by 7%, controlling for individual education, demographics, and area characteristics....