Crump, Richard K.; Hotz, V. Joseph; Imbens, Guido W.; … - Institute for the Study of Labor (IZA) - 2006
A large part of the recent literature on program evaluation has focused on estimation of the average effect of the treatment under assumptions of unconfoundedness or ignorability following the seminal work by Rubin (1974) and Rosenbaum and Rubin (1983). In many cases however, researchers are...