Income, schooling, and ability: evidence from a new sample of identical twins

We develop a model of optimal schooling investments and estimate it using new data on approximately 700 identical twins. We estimate an average return to schooling of 9 percent for identical twins, but estimated returns appear to be slightly higher for less able individuals. Simple cross-section est...

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Hauptverfasser: Ashenfelter, Orley 1942- (VerfasserIn), Rouse, Cecilia (VerfasserIn)
Format: Buch
Sprache:English
Veröffentlicht: Cambridge, Mass. 1997
Schriftenreihe:National Bureau of Economic Research <Cambridge, Mass.>: NBER working paper series 6106
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Zusammenfassung:We develop a model of optimal schooling investments and estimate it using new data on approximately 700 identical twins. We estimate an average return to schooling of 9 percent for identical twins, but estimated returns appear to be slightly higher for less able individuals. Simple cross-section estimates are marginally upward biased. These empirical results imply that more able individuals attain more schooling because they face lower marginal costs of schooling, not because of higher marginal benefits.
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