Research design meets market design : using centralized assignment for impact evaluation / Atila Abdulkadiroglu (Duke University and NBER), Joshua D. Angrist (MIT, NBER and IZA), Yusuke Narita (Yale University), Parag A. Pathak (MIT and NBER) ; IZA, Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, December 2016