2006–2010

"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.


Reference:
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

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Interdisciplinary European Studies

The European Union in a Changing World Order

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This book explores how the European Union responds to the ongoing challenges to the liberal international order. These challenges arise both within the EU itself and beyond its borders, and put into question the values of free trade and liberal democracy. 

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