(), Panu Poutvaara
() and Juha Tuomala
Henrik Jordahl: Research Institute of Industrial Economics (IFN), Postal: P.O. Box 55665, SE-102 15 Stockholm, Sweden
Panu Poutvaara: University of Helsinki
Juha Tuomala: Government Institute for Economic Research (VATT)
Abstract: In a recent paper, García-Mainar and Montuenga-Gómez (2005) 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.
6 pages, August 27, 2008
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