Chris Hayes is a senior research associate with the Metropolitan Housing and Communities Policy Center at the Urban Institute. His work focuses on the use of neighborhood-level data to improve public policy decisionmaking. Hayes directs the first stage of an evaluation of the US Department of Housing and Urban Development’s Rental Assistance Demonstration program and its impact on public housing residents. His recent projects include identifying community-level indicators for New York State’s Community, Opportunity Reinvestment Initiative, managing program data from several housing authorities for the HOST program to help determine the impact of intensive case management, and providing technical assistance under the US Department of Education’s Promise Neighborhood program. Other work includes analyses of the impact of housing transformation on crime in neighborhoods receiving relocated public housing residents in Chicago and Atlanta; a study of the factors affecting neighborhood choice by housing voucher recipients; and managing the data for a multiwave survey of neighborhood residents for the Annie E. Casey Foundation’s Making Connections project.