CHARACTERIZING SELECTION BIAS USING EXPERIMENTAL DATA
| Year of publication: |
1998
|
|---|---|
| Authors: | Heckman, James ; Ichimura, Hidehiko ; Smith, Jeffrey ; Todd, Petra |
| Published in: |
Working paper / National Bureau of Economic Research, Inc. - Cambridge, Mass, ISSN 0898-2937, ZDB-ID 12239057. - 1998, 6699
|