"Education Returns of Wage Earners and Self-employed Workers: Comment" and "Education Returns of Wage Earners and Self-employed Workers: Rejoinder"

Reprint No. 2009:35

Author(s): Henrik Jordahl, Panu Poutvaara and Juha TuomalaYear: 2009 Title: Economics of Education Review Volume (No.): 28 (5) Pages: 641–644, 648
Online article (restrictions may apply)

In a recent paper, García-Mainar and Montuenga-Gómez [García-Mainar, I. & Montuenga-Gómez, V. M. (2005). Education returns of wage earners and self-employed workers: Portugal vs. Spain. Economics of Education Review, 24(2), 161–170] apply the generalized IV model of Hausman and Taylor to estimate education returns of wage earners and the self-employed in Portugal and in Spain. Our examination reveals several problems which relate to the validity and documentation of the instrumental variables, as well as the robustness of the results.

In their reply to our comment, García-Mainar and Montuenga-Gómez [García-Mainar, I., & Montuenga-Gómez, V. M. (2009). A response to the comment on education returns of wage earners and self-employed workers. Economics of Education Review] did not address our fundamental criticism that they have not provided the information necessary to replicate their study.

Jordahl, Henrik, Panu Poutvaara and Juha Tuomala (2009), ""Education Returns of Wage Earners and Self-employed Workers: Comment" and "Education Returns of Wage Earners and Self-employed Workers: Rejoinder"". Economics of Education Review 28(5), 641–644, 648.

Henrik Jordahl


Ph: +46 8 665 4533
Mob: +46 70 938 3858

Integrating Immigrants into the Nordic Labour Markets

An Overall Perspective


Denmark, Finland, Norway and Sweden face similar problems of integrating large groups of immigrants, especially low-educated ones from outside the EU, into their labour markets. In this volume, edited by Lars Calmfors, IFN, and Nora Sánchez Gassen in cooperation with researchers from across the Nordic Region analyse how labour market integration of immigrants can be promoted. 

About the book


Seminars organized by IFN


To present ongoing research informal brown-bag seminars are held on Mondays at 11:30 am. This is an opportunity for IFN researchers to test ideas and results.

Academically oriented seminars are most of the time held on Wednesdays at 10 am. At these events researchers from IFN and other institutions present their research.

In addition, IFN organizes seminars open to the public. Topics for these are derived from the IFN research.

Research Institute of Industrial Economics, Grevgatan 34 - 2 fl, Box 55665, SE-102 15 Stockholm, Sweden | Phone: +46-(0)8-665 45 00 | info@ifn.se