Tate Twinam

Tyler Hall 250
300 James Blair Drive
College of William & Mary
Williamsburg, VA 23187

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org
Institutional Affiliation: College of William and Mary

NBER Working Papers and Publications

October 2018Minority Representation in Local Government
with Brian Beach, Daniel B. Jones, Randall Walsh: w25192
Does minority representation in a legislative body differentially impact outcomes for minorities? To examine this question, we study close elections for California city council seats between white and nonwhite candidates. We find that nonwhite candidates generate differential gains in housing prices in majority nonwhite neighborhoods. This result, which is not explained by correlations between candidate race and political affiliation or neighborhood racial composition and income, suggests that increased representation can reduce racial disparities. Our results strengthen with increased city-level segregation and councilmember pivotality. Regarding mechanisms, we observe changes in business patterns and policing behavior, which may help explain our results.
September 2016Zoning and the Economic Geography of Cities
with Allison Shertzer, Randall P. Walsh: w22658
Comprehensive zoning is ubiquitous in U.S. cities, yet we know surprisingly little about its long-run impacts. We provide the first attempt to measure the causal effect of land use regulation over the long term, using as our setting Chicago’s first (1923) comprehensive zoning ordinance. Our results indicate that zoning has had a broader and more significant impact on the spatial distribution of economic activity than was previously believed. In particular, zoning may be more important than either geography or transportation networks – the workhorses of urban economic geography models – in explaining where commercial and industrial activity are located.

Published: Allison Shertzer & Tate Twinam & Randall P. Walsh, 2018. "ZONING AND THE ECONOMIC GEOGRAPHY OF CITIES," Journal of Urban Economics, . citation courtesy of

May 2014Race, Ethnicity, and Discriminatory Zoning
with Allison Shertzer, Randall P. Walsh: w20108
Zoning has been cited as a discriminatory policy tool by critics, who argue that ordinances are used to deter the entry of minority residents into majority neighborhoods through density restrictions (exclusionary zoning) and locate manufacturing activity in minority neighborhoods (environmental racism). However, identifying discrimination in these regulations is complicated by the fact that land use and zoning have been co-evolving for nearly a century in most American cities, rendering residential sorting and inequitable treatment observationally equivalent. We employ a novel approach to overcome this challenge, studying the introduction of comprehensive zoning in Chicago. Using fine-scale spatial data on pre-existing land uses and the locations of minority neighborhoods, we find eviden...


NBER Videos

National Bureau of Economic Research, 1050 Massachusetts Ave., Cambridge, MA 02138; 617-868-3900; email:

Contact Us