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Returns to Education: What Do Twin Studies Control?

Published online by Cambridge University Press:  21 February 2012

Kevin C. Stanek,
William G. Iacono and
Matt McGue
Kevin C. Stanek*
Affiliation:
Department of Psychology, University of Minnesota, United States of America
William G. Iacono
Affiliation:
Department of Psychology, University of Minnesota, United States of America
Matt McGue
Affiliation:
Department of Psychology, University of Minnesota, United States of America
*
ADDRESS FOR CORRESPONDENCE: Kevin C. Stanek, Department of Psychology/Elliott Hall, University of Minnesota, Minneapolis, MN 55455, USA. E-mail: stane040@umn.edu

Abstract

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The current article examines the assumptions of the MZ co-twin control method that has been applied in attempts to gain more accurate estimates of the returns to education by naturally ‘controlling’ for individual differences on which MZ twins are matched. The current study examined 1738 MZ and 926 DZ twins from Minnesota, including 133 pairs of MZ and 101 pairs of DZ twins discordant for university attendance. They were assessed prospectively on personality, intelligence, GPA, and academic motivation; a subset also has reported income at age 29. MZ twins discordant for university attendance differed significantly and prospectively on verbal IQ, personality traits, and GPA. While MZ co-twin control studies can provide more accurate estimates of the returns to education than analyses of single individuals, these studies do not entirely obviate the need to control for differences between university students and non-students that predate university attendance and might account for income differentials and even non-monetary outcomes.

Keywords

co-twin control methoddiscordant twinsreturns to educationincome

Information

Type
Articles
Information
Twin Research and Human Genetics , Volume 14 , Issue 6 , December 2011, pp. 509 - 515
Copyright
Copyright © Cambridge University Press 2011

References

Ashenfelter, O., Harmon, C., & Oosterbeek, H. (1999). A review of estimates of the schooling/earnings relationship, with tests for publication bias. Labour Economics, 6, 453–470.CrossRefGoogle Scholar
Ashenfelter, O., & Krueger, A. (1994). Estimates of the economic return to schooling from a new sample of twins. The American Economic Review, 84, 1157–1173.Google Scholar
Card, D. (2001). Estimating the return to schooling: Progress on some persistent econometric problems. Econometrica, 69, 1127–1160.CrossRefGoogle Scholar
Griliches, Z. (1979). Sibling models and data in economics: Beginnings of a survey. The Journal of Political Economy, 87, 37–64.CrossRefGoogle Scholar
Hicks, B. M., Johnson, W., Iacono, W. G., & McGue, M. (2008). Moderating effects of personality on the genetic and environmental influences of school grades helps to explain sex differences in scholastic achievement. European Journal of Personality, 22, 247–268.CrossRefGoogle ScholarPubMed
Iacono, W. G., Carlson, S. R., Taylor, J., Elkins, I. J., & McGue, M. (1999). Behavioral disinhibition and the development of substance-use disorders: Findings from the Minnesota Twin Family Study. Development and Psychopathology, 11, 869–900.CrossRefGoogle ScholarPubMed
Iacono, W. G., & McGue, M. (2002). Minnesota twin family study. Twin Research and Human Genetics, 5, 482–487.CrossRefGoogle ScholarPubMed
Isacsson, G. (2004). Estimating the economic return to educational levels using data on twins. Journal of Applied Econometrics, 19, 99–119.CrossRefGoogle Scholar
Jockin, V., McGue, M., & Lykken, D. T. (1996). Personality and divorce: A genetic analysis. Journal of Personality and Social Psychology, 71, 288–299.CrossRefGoogle Scholar
Johnson, W., McGue, M., & Iacono, W. G. (2006). Genetic and environmental influences on academic achievement trajectories during adolescence. Developmental Psychology, 42, 514–531.CrossRefGoogle ScholarPubMed
Leigh, A., & Ryan, C. (2008). Estimating returns to education using different natural experiment techniques. Economics of Education Review, 27, 149–160.CrossRefGoogle Scholar
McGue, M., & Bouchard, T. J. Jr, (1998). Genetic and environmental influences on human behavioral differences. Annual Review of Neuroscience, 21, 1–24.CrossRefGoogle ScholarPubMed
McGue, M., Osler, M. & Christensen, K. (2010). Causal inference and observational research: The utility of twins. Perspectives on Psychological Science, 5/5, 1745–6924.Google Scholar
Miller, P., Mulvey, C., & Martin, N. (2006). The return to schooling: Estimates from a sample of young Australian twins. Labour Economics, 13, 571–587.CrossRefGoogle Scholar
Neumark, D. (1999). Biases in twin estimates of the return to schooling. Economics of Education Review, 18, 143–148.CrossRefGoogle Scholar
Sattler, J. M. (1974). Assessment of children's intelligence. Philadelphia: Saunders.Google Scholar
Tellegen, A. & Waller, N. G. (2008). Exploring personality through test construction: Development of the Multidimensional Personality Questionnaire. In Boyle, G. J.Matthews, G. & Saklofske, D. H. (Eds.), The SAGE Handbook of Personality Theory and Assessment: Vol. 2 Personality Measurement and Testing (pp. 261–292). London: Sage.CrossRefGoogle Scholar