Using data on 25 major American cities for the period 1900-1940, we explore the effects of municipal-level public health efforts that were viewed as critical in the fight against food- and water-borne diseases. In addition to studying interventions such as treating sewage and setting strict...

We investigate the informativeness of hygiene signals in online reviews, and their effect on consumer choice and restaurant hygiene. We first extract signals of hygiene from Yelp. Among all dimensions that regulators monitor through mandated restaurant inspections, we find that reviews are more...

This paper examines the structure, behavior and performance of the N95 respirator market in the U.S. before and during the COVID-19 pandemic (2020-early 2022). It focuses on the behavior and performance of government and private sector organizations in the allocation of scarce supplies of N95...

Behavioral constraints may explain part of low demand for preventive health products. We test the effects of two light-touch psychological interventions on water chlorination and related health and economic outcomes using a randomized controlled trial among 3750 women in rural Kenya. One...

This paper presents the results from a randomized evaluation that distributed menstrual cups (menstrual sanitary products) to adolescent girls in rural Nepal. Girls in the study were randomly allocated a menstrual cup for use during their monthly period and were followed for fifteen months to...

Between 1900 and 1930 typhoid fever and other waterborne diseases were largely eradicated from U.S. cities. This achievement required a mix of technological, scientific, economic, and bureaucratic innovations. This article examines how the interaction of those forces influenced water and...

In 2011, Maricopa County adopted voluntary restaurant hygiene grade cards (A, B, C, D). Using inspections results between 2007 and 2013, we show that only 58 percent of the subsequent inspections led to online grade posting. Although the disclosure rate in general declines with inspection...

Can open tournaments improve the quality of city services? The proliferation of big data makes it possible to use predictive analytics to better target services like hygiene inspections, but city governments rarely have the in-house talent needed for developing prediction algorithms. Cities...