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Class Size and Class Heterogeneity

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  • Giacomo De Giorgi
  • Michele Pellizzari
  • William Gui Woolston

Abstract

We study how class size and class composition affect the academic and labor market performance of college students, two crucial policy questions given the secular increase in college enrollment. Our identification strategy relies on the random assignment of students to teaching classes. We find that a one standard deviation increase in class-size results in a 0.1 standard deviation deterioration of the average grade. Further, the effect is heterogeneous as it is stronger for males and lower income students. Also, the effects of class composition in terms of gender and ability appear to be inverse U-shaped. Finally, a reduction of 20 students (one standard deviation) in one's class size has a positive effect on monthly wages of about 80 Euros (115 USD) or 6% over the average.

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Bibliographic Info

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 16405.

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Date of creation: Sep 2010
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Publication status: published as Giacomo De Giorgi & Michele Pellizzari & William Gui Woolston, 2012. "Class Size And Class Heterogeneity," Journal of the European Economic Association, European Economic Association, vol. 10(4), pages 795-830, 08.
Handle: RePEc:nbr:nberwo:16405

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References

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  1. Paul Oyer, 2006. "Initial Labor Market Conditions and Long-Term Outcomes for Economists," Journal of Economic Perspectives, American Economic Association, vol. 20(3), pages 143-160, Summer.
  2. Scott E. Carrell & Richard L. Fullerton & James E. West, 2009. "Does Your Cohort Matter? Measuring Peer Effects in College Achievement," Journal of Labor Economics, University of Chicago Press, vol. 27(3), pages 439-464, 07.
  3. Sloan, Frank A & Reilly, Bridget A & Schenzler, Christoph, 1995. "Effects of Tort Liability and Insurance on Heavy Drinking and Drinking and Driving," Journal of Law and Economics, University of Chicago Press, vol. 38(1), pages 49-77, April.
  4. Jonathan Guryan & Kory Kroft & Matt Notowidigdo, 2007. "Peer Effects in the Workplace: Evidence from Random Groupings in Professional Golf Tournaments," NBER Working Papers 13422, National Bureau of Economic Research, Inc.
  5. De Giorgi, Giacomo & Pellizzari, Michele & Redaelli, Silvia, 2007. "Be as Careful of the Books You Read as of the Company You Keep: Evidence on Peer Effects in Educational Choices," IZA Discussion Papers 2833, Institute for the Study of Labor (IZA).
  6. Bandiera, Oriana & Larcinese, Valentino & Rasul, Imran, 2009. "Heterogeneous Class Size Effects: New Evidence from a Panel of University Students," IZA Discussion Papers 4496, Institute for the Study of Labor (IZA).
  7. Lorraine Dearden & Javier Ferri & Costas Meghir, 1998. "The effect of school quality on educational attainment and wages," IFS Working Papers W98/03, Institute for Fiscal Studies.
  8. Caroline M. Hoxby, 1998. "The Effects of Class Size and Composition on Student Achievement: New Evidence from Natural Population Variation," NBER Working Papers 6869, National Bureau of Economic Research, Inc.
  9. David N. Figlio & Marianne E. Page, 2000. "School Choice and the Distributional Effects of Ability Tracking: Does Separation Increase Equality?," NBER Working Papers 8055, National Bureau of Economic Research, Inc.
  10. Dobbelsteen, Simone & Levin, Jesse & Oosterbeek, Hessel, 2002. " The Causal Effect of Class Size on Scholastic Achievement: Distinguishing the Pure Class Size Effect from the Effect of Changes in Class Composition," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 64(1), pages 17-38, February.
  11. Joshua D. Angrist & Victor Lavy, 1999. "Using Maimonides' Rule To Estimate The Effect Of Class Size On Scholastic Achievement," The Quarterly Journal of Economics, MIT Press, vol. 114(2), pages 533-575, May.
  12. Duflo, Esther & Dupas, Pascaline & Kremer, Michael, 2008. "Peer Effects and the Impact of Tracking: Evidence from a Randomized Evaluation in Kenya," CEPR Discussion Papers 7043, C.E.P.R. Discussion Papers.
  13. Renate Schubert, 1999. "Financial Decision-Making: Are Women Really More Risk-Averse?," American Economic Review, American Economic Association, vol. 89(2), pages 381-385, May.
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Citations

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Cited by:
  1. John List & Imran Rasul, 2010. "Field experiments in labor economics," Artefactual Field Experiments 00092, The Field Experiments Website.
  2. Michela Braga & Marco Paccagnella & Michele Pellizzari, 2011. "Evaluating students’ evaluations of professors," Working Papers 384, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
  3. Fu, Shihe & Viard, Brian, 2014. "Commute Costs and Labor Supply: Evidence from a Satellite Campus," MPRA Paper 53740, University Library of Munich, Germany.
  4. Stephen L. Ross, 2009. "Social Interactions within Cities: Neighborhood Environments and Peer Relationships," Working papers 2009-31, University of Connecticut, Department of Economics.
  5. Harding, Matthew & Lamarche, Carlos, 2014. "Estimating and testing a quantile regression model with interactive effects," Journal of Econometrics, Elsevier, vol. 178(P1), pages 101-113.
  6. Giacomo De Giorgi & Michele Pellizzari, 2013. "Understanding Social Interactions: Evidence from the Classroom," NBER Working Papers 19202, National Bureau of Economic Research, Inc.
  7. Ostermaier, Andreas & Beltz, Philipp & Link, Susanne, 2013. "Do university policies matter? Effects of Course Policies on Performance," Annual Conference 2013 (Duesseldorf): Competition Policy and Regulation in a Global Economic Order 79924, Verein für Socialpolitik / German Economic Association.

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