The New Palgrave Dictionary of Economics

2018 Edition
| Editors: Macmillan Publishers Ltd

Roy Model

  • James J. Heckman
  • Christopher Taber
Reference work entry


The Roy (1951) model of self-selection on outcomes is one of the most important models in economics. It is a framework for analysing comparative advantage. The original model analysed occupational choice with heterogeneous skill levels and has subsequently been applied in many other contexts. This article presents the model, discusses its identification, and describes some empirical applications based on the model.


Comparative advantage Discrete choice Estimation Identification Occupational choice Roy model Selection bias Self-selection Separability 

JEL Classifications

D3 J3 
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Copyright information

© Macmillan Publishers Ltd. 2018

Authors and Affiliations

  • James J. Heckman
    • 1
  • Christopher Taber
    • 1
  1. 1.