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Working Paper
The Effects of the Great Migration on Urban Renewal
The Great Migration significantly increased the number of African Americans moving to northern and western cities beginning in the first half of the twentieth century. We show that their arrival shaped “slum clearance” and urban redevelopment efforts in receiving cities. To estimate the effect of migrants, we instrument for Black population changes using a shift-share instrument that interacts historical migration patterns with local economic shocks that predict Black out-migration from the South. We find that local governments responded by undertaking more urban renewal projects that ...
Working Paper
The Effects of the Great Migration on Urban Renewal
The Great Migration significantly increased the number of African Americans moving to northern and western cities beginning in the first half of the twentieth century. We show that their arrival shaped slum clearance and urban redevelopment efforts in receiving cities. To estimate the effect of migrants, we instrument for Black population changes using a shift-share instrument that interacts historical migration patterns with local economic shocks that predict Black out-migration from the South. We find that local governments responded by undertaking more urban renewal projects that aimed to ...
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How Common Was Blockbusting in the Postwar U.S.?
This article documents the prevalence of blockbusting—the orchestration of racial turnover in urban neighborhoods—throughout many major U.S. cities from the 1950s through the 1970s.
Working Paper
The Bronx is Burning: Urban Disinvestment Effects of the Fair Access to Insurance Requirements
In response to private insurers’ postwar withdrawal from urban neighborhoods, roughly half of U.S. states developed programs in the late 1960s that offered residual property insurance to property owners denied in the private market. These plans, known as Fair Access to Insurance Requirements (FAIR) plans after 1968, inadvertently encouraged moral hazard through underwriting restrictions, risk pooling, and generous payouts. We use a triple-difference design to estimate FAIR’s impact, comparing: (1) pre- and post-FAIR participation periods, (2) neighborhoods likely offered FAIR plans versus ...
Working Paper
The Effects of the Great Migration on Urban Renewal
The Great Migration significantly increased the number of African Americans moving to northern and western cities beginning in the first half of the twentieth century. We show that their arrival shaped “slum clearance” and urban redevelopment efforts in receiving cities. To estimate the effect of migrants, we instrument for Black population changes using a shift-share instrument that interacts historical migration patterns with local economic shocks that predict Black out-migration from the South. We find that local governments responded by undertaking more urban renewal projects that ...
Working Paper
Zoning and the American Suburb
American suburbs are generally characterized by single-family neighborhoods featuring large lots, with few businesses or apartments. To understand the origins of this pattern of development, we construct the first panel dataset of suburban zoning maps and bylaws for a major American metropolitan area and ask how comprehensive land use regulation shaped the form of the suburbs of Chicago today. Our strategy identifies the impact of zoning using land that was undeveloped before such regulations were adopted. The typical post-zoning suburban neighborhood sets aside over 90 percent of land for ...
Working Paper
The Lasting Impact of Historical Residential Security Maps on Experienced Segregation
We study the impact of the 1930s HOLC residential security maps on experienced segregation based on cell phone records which track visits out of and into home neighborhoods. We compare adjacent neighborhoods, one of which was assigned a lower grade for creditworthiness than the other. We use a sample of neighborhood borders which, based on estimated propensity scores, are likely to have been drawn for idiosyncratic reasons. Neighborhoods on the lower graded side of the border are associated with more visits to other historically lower graded destination neighborhoods. Today, these destination ...
Working Paper
The Bronx Is Burning: Urban Disinvestment Effects of the Fair Access to Insurance Requirements
We study the unintended effects of Fair Access to Insurance Requirements (FAIR) plans developed by 26 states in the 1960s to address insurance redlining in urban neighborhoods. FAIR plans’ problematic features included prohibitions on considering environmental hazards in underwriting, mandatory insurer participation that diluted underwriting incentives, and payouts exceeding market values in declining areas. Using a triple-difference design comparing pre/post-FAIR periods, neighborhoods with/without likely FAIR access, and participating/nonparticipating states, we find that FAIR ...
Working Paper
Lockdowns and Innovation: Evidence from the 1918 Flu Pandemic
Does social distancing harm innovation? We estimate the effect of non-pharmaceutical interventions (NPIs)—policies that restrict interactions in an attempt to slow the spread of disease—on local invention. We construct a panel of issued patents and NPIs adopted by 50 large US cities during the 1918 flu pandemic. Difference-in-differences estimates show that cities adopting longer NPIs did not experience a decline in patenting during the pandemic relative to short-NPI cities, and recorded higher patenting afterward. Rather than reduce local invention by restricting localized knowledge ...
Working Paper
The Racial Dynamics of U.S. Neighborhoods and Their Housing Prices from 1950 Through 1990
We characterize the dynamics of neighborhood racial composition by using the k-medians machine learning technique to group neighborhoods into five different patterns according to the evolution of the Black population share of census tracts from 1950 through 1990. The procedure classifies tracts into groups that: always have a high Black population share, always have a low Black population share, have a steep increase in the Black population share from 1950-1960, or 1960-1970, and those that have a gradual increase in the Black population share from 1950-1990. We calculate the growth in median ...