Heckman, James J. - Institute for the Study of Labor (IZA) - 2008
business. IZA is an independent nonprofit
organization supported by Deutsche Post World Net. The center is associated with the … competitive research in all fields of labor economics, (ii) development of
policy concepts, and (iii) dissemination of research …. realized outcomes,
counterfactuals, treatment effects
Corresponding author:
James J. Heckman
Department of Economics …