Developing and fast-growing economies have some of the worse air pollution in the world, but there is a lack of systematic evidence on the health especially morbidity impact of air pollution in these countries. Based on the universe of credit and debit card transactions in China from 2013 to...

Developing and fast-growing economies have some of the worse air pollution in the world, but there is a lack of systematic evidence on the health especially morbidity impact of air pollution in these countries. Based on the universe of credit and debit card transactions in China from 2013 to...

This paper investigates the prediction accuracy of discrete choice models of school demand, using a policy reform in Boston that altered where applicants can apply under school choice. We find that the discrete choice models do not consistently outperform a much simpler heuristic, but their...

Conventional value-added models (VAMs) compare average test scores across schools after regression-adjusting for students’ demographic characteristics and previous scores. This paper tests for VAM bias using a procedure that asks whether VAM estimates accurately predict the achievement...

Lottery estimates suggest oversubscribed urban charter schools boost student achievement markedly. But these estimates needn't capture treatment effects for students who haven't applied to charter schools or for students attending charters for which demand is weak. This paper reports estimates...