Econometrica is conducting an evaluation of HUD’s RAD program to examine what new opportunities RAD creates for public housing authorities (PHAs) to improve public housing physical conditions, how RAD helps PHAs preserve those units over the long term, and the impact of these changes on tenants. Econometrica is collecting quantitative and qualitative data from primary and secondary sources and analyzing those data. In addition, Econometrica is conducting surveys to capture information on the experiences of the individuals and organizations implementing the program.