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Season of Birth and Later Outcomes: Old Questions, New Answers

  • Kasey Buckles
  • Daniel M. Hungerman

Research has found that season of birth is associated with later health and professional outcomes; what drives this association remains unclear. In this paper we consider a new explanation: that children born at different times in the year are conceived by women with different socioeconomic characteristics. We document large seasonal changes in the characteristics of women giving birth throughout the year in the United States. Children born in the winter are disproportionally born to women who are more likely to be teenagers and less likely to be married or have a high school degree. We show that controls for family background characteristics can explain up to half of the relationship between season of birth and adult outcomes. We then discuss the implications of this result for using season of birth as an instrumental variable; our findings suggest that, though popular, season-of-birth instruments may produce inconsistent estimates. Finally, we find that some of the seasonality in maternal characteristics is due to summer weather differentially affecting fertility patterns across socioeconomic groups.

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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 14573.

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Date of creation: Dec 2008
Date of revision:
Publication status: published as Kasey S. Buckles & Daniel M. Hungerman, 2013. "Season of Birth and Later Outcomes: Old Questions, New Answers," The Review of Economics and Statistics, MIT Press, vol. 95(3), pages 711-724, July.
Handle: RePEc:nbr:nberwo:14573
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  1. Lee, Chanyoung & Orazem, Peter, 2008. "High School Employment, School Performance, and College Entry," Staff General Research Papers 12953, Iowa State University, Department of Economics.
  2. Jere R. Behrman & Mark R. Rosenzweig, 2004. "Returns to Birthweight," The Review of Economics and Statistics, MIT Press, vol. 86(2), pages 586-601, May.
  3. Hoogerheide, L.F. & Kleibergen, F.R. & van Dijk, H.K., 2006. "Natural conjugate priors for the instrumental variables regression model applied to the Angrist-Krueger data," Econometric Institute Research Papers EI 2006-02, Erasmus University Rotterdam, Erasmus School of Economics (ESE), Econometric Institute.
  4. Levin, Jesse & Plug, Erik J. S., 1999. "Instrumenting education and the returns to schooling in the Netherlands," Labour Economics, Elsevier, vol. 6(4), pages 521-534, November.
  5. Devereux, Paul J., 2007. "Improved Errors-in-Variables Estimators for Grouped Data," Journal of Business & Economic Statistics, American Statistical Association, vol. 25, pages 278-287, July.
  6. Corrado Andini, 2007. "The total impact of schooling on within-groups wage inequality in Portugal," Applied Economics Letters, Taylor & Francis Journals, vol. 15(2), pages 85-90.
  7. Vegard Skirbekk & Hans-Peter Kohler & Alexia Prskawetz, 2004. "Birth month, school graduation, and the timing of births and marriages," Demography, Springer, vol. 41(3), pages 547-568, August.
  8. Jeremy Arkes, 2010. "Using Unemployment Rates as Instruments to Estimate Returns to Schooling," Southern Economic Journal, Southern Economic Association, vol. 76(3), pages 711-722, January.
  9. Todd E. Elder & Darren H. Lubotsky, 2009. "Kindergarten Entrance Age and Children’s Achievement: Impacts of State Policies, Family Background, and Peers," Journal of Human Resources, University of Wisconsin Press, vol. 44(3).
  10. Scott Adams, 2002. "Educational Attainment and Health: Evidence from a Sample of Older Adults," Education Economics, Taylor & Francis Journals, vol. 10(1), pages 97-109.
  11. Andrew Leigh & Chris Ryan, 2005. "Estimating Returns to Education: Three Natural Experiment Techniques Compared," CEPR Discussion Papers 493, Centre for Economic Policy Research, Research School of Economics, Australian National University.
  12. Sandra E Black & Paul J Devereux & Kjell G Salvanes, 2007. "From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes," The Quarterly Journal of Economics, MIT Press, vol. 122(1), pages 409-439, 02.
  13. Eric Maurin & Julie Moschion, 2009. "The Social Multiplier and Labor Market Participation of Mothers," American Economic Journal: Applied Economics, American Economic Association, vol. 1(1), pages 251-72, January.
  14. Card, David, 1999. "The causal effect of education on earnings," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 3, chapter 30, pages 1801-1863 Elsevier.
  15. Ann Huff Stevens & Marianne Page & Philip Oreopoulos, 2005. "The Intergenerational Effects of Compulsory Schooling," Working Papers 519, University of California, Davis, Department of Economics.
  16. Case, Anne & Fertig, Angela & Paxson, Christina, 2005. "The lasting impact of childhood health and circumstance," Journal of Health Economics, Elsevier, vol. 24(2), pages 365-389, March.
  17. Guido W. Imbens & Paul R. Rosenbaum, 2005. "Robust, accurate confidence intervals with a weak instrument: quarter of birth and education," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 168(1), pages 109-126.
  18. Joshua D. Angrist & Alan B. Krueger, 1995. "Split Sample Instrumental Variables," NBER Technical Working Papers 0150, National Bureau of Economic Research, Inc.
  19. Andrew Chesher, 2002. "Instrumental Values," CeMMAP working papers CWP17/02, Centre for Microdata Methods and Practice, Institute for Fiscal Studies.
  20. David Lam & Jeffrey Miron, 1996. "The effects of temperature on human fertility," Demography, Springer, vol. 33(3), pages 291-305, August.
  21. Bruce D. Meyer & James X. Sullivan, 2001. "The Effects of Welfare and Tax Reform: The Material Well-Being of Single Mothers in the 1980s and 1990s," NBER Working Papers 8298, National Bureau of Economic Research, Inc.
  22. Joshua Angrist & Alan B. Krueger, 2001. "Instrumental Variables and the Search for Identification: From Supply and Demand to Natural Experiments," NBER Working Papers 8456, National Bureau of Economic Research, Inc.
  23. Daniel Seiver, 1985. "Trend and variation in the seasonality of U.S. fertility, 1947–1976," Demography, Springer, vol. 22(1), pages 89-100, February.
  24. Karsten Hansen & James J. Heckman & Kathleen J. Mullen, 2003. "The Effect of Schooling and Ability on Achievement Test Scores," NBER Working Papers 9881, National Bureau of Economic Research, Inc.
  25. Kasey S. Buckles & Daniel M. Hungerman, 2013. "Season of Birth and Later Outcomes: Old Questions, New Answers," The Review of Economics and Statistics, MIT Press, vol. 95(3), pages 711-724, July.
  26. Gary Chamberlain & Guido Imbens, 2004. "Random Effects Estimators with many Instrumental Variables," Econometrica, Econometric Society, vol. 72(1), pages 295-306, 01.
  27. David Lam & Jeffrey Miron & Ann Riley, 1994. "Modeling Seasonality in Fecundability, Conceptions, and Births," Demography, Springer, vol. 31(2), pages 321-346, May.
  28. Honore, Bo E & Hu, Luojia, 2004. "On the Performance of Some Robust Instrumental Variables Estimators," Journal of Business & Economic Statistics, American Statistical Association, vol. 22(1), pages 30-39, January.
  29. Douglas Staiger & James H. Stock, 1994. "Instrumental Variables Regression with Weak Instruments," NBER Technical Working Papers 0151, National Bureau of Economic Research, Inc.
  30. Frank Kleibergen, 2002. "Pivotal Statistics for Testing Structural Parameters in Instrumental Variables Regression," Econometrica, Econometric Society, vol. 70(5), pages 1781-1803, September.
  31. Dufour, Jean-Marie & Taamouti, Mohamed, 2007. "Further results on projection-based inference in IV regressions with weak, collinear or missing instruments," Journal of Econometrics, Elsevier, vol. 139(1), pages 133-153, July.
  32. Currie, J. & Cole, N., 1992. "Welfare and Child Health: the Link Between AFDC Participation and Birth Weight," Working papers 92-9, Massachusetts Institute of Technology (MIT), Department of Economics.
  33. Joshua Angrist & Alan Krueger, 1990. "Does Compulsory School Attendance Affect Schooling and Earnings?," Working Papers 653, Princeton University, Department of Economics, Industrial Relations Section..
  34. Andrew Chesher, 2005. "Nonparametric Identification under Discrete Variation," Econometrica, Econometric Society, vol. 73(5), pages 1525-1550, 09.
  35. Paul J. Devereux & Sandra E. Black & Kjell G. Salvanes, 2007. "From the cradle to the labor market? The effect of birth weight on adult outcomes," Working Papers 10197/317, School of Economics, University College Dublin.
  36. Robert J. Lemke & Isaac C. Rischall, 2003. "Skill, parental income, and IV estimation of the returns to schooling," Applied Economics Letters, Taylor & Francis Journals, vol. 10(5), pages 281-286, April.
  37. Andini, Corrado, 2007. "Within-Groups Wage Inequality and Schooling: Further Evidence for Portugal," IZA Discussion Papers 2828, Institute for the Study of Labor (IZA).
  38. Jonah B. Gelbach, 2002. "Public Schooling for Young Children and Maternal Labor Supply," American Economic Review, American Economic Association, vol. 92(1), pages 307-322, March.
  39. Mark R. Rosenzweig, 1999. "Welfare, Marital Prospects, and Nonmarital Childbearing," Journal of Political Economy, University of Chicago Press, vol. 107(S6), pages S3-S32, December.
  40. Joshua D. Angrist & Alan B. Krueger, 1990. "The Effect of Age at School Entry on Educational Attainment: An Application of Instrumental Variables with Moments from Two Samples," NBER Working Papers 3571, National Bureau of Economic Research, Inc.
  41. Donald, Stephen G & Newey, Whitney K, 2001. "Choosing the Number of Instruments," Econometrica, Econometric Society, vol. 69(5), pages 1161-91, September.
  42. Dobkin, Carlos & Ferreira, Fernando, 2010. "Do school entry laws affect educational attainment and labor market outcomes?," Economics of Education Review, Elsevier, vol. 29(1), pages 40-54, February.
  43. Derek A. Neal & William R. Johnson, 1995. "The Role of Pre-Market Factors in Black-White Wage Differences," NBER Working Papers 5124, National Bureau of Economic Research, Inc.
  44. Chernozhukov, Victor & Hansen, Christian, 2006. "Instrumental quantile regression inference for structural and treatment effect models," Journal of Econometrics, Elsevier, vol. 132(2), pages 491-525, June.
  45. Dora L. Costa & Joanna N. Lahey, 2005. "Predicting Older Age Mortality Trends," Journal of the European Economic Association, MIT Press, vol. 3(2-3), pages 487-493, 04/05.
  46. Rajeev Dehejia & Adriana LLeras Muney, 2004. "Booms, Busts, and Babies' Health," The Quarterly Journal of Economics, MIT Press, vol. 119(3), pages 1091-1130, August.
  47. Plug, Erik J. S., 2001. "Season of birth, schooling and earnings," Journal of Economic Psychology, Elsevier, vol. 22(5), pages 641-660, October.
  48. Stacy Dickert-Conlin & Amitabh Chandra, 1999. "Taxes and the Timing of Birth," Journal of Political Economy, University of Chicago Press, vol. 107(1), pages 161-177, February.
  49. Lars Lefgren & Frank McIntyre, 2006. "The Relationship between Women's Education and Marriage Outcomes," Journal of Labor Economics, University of Chicago Press, vol. 24(4), pages 787-830, October.
  50. Janet Currie, 2008. "Healthy, Wealthy, and Wise: Socioeconomic Status, Poor Health in Childhood, and Human Capital Development," NBER Working Papers 13987, National Bureau of Economic Research, Inc.
  51. Robertson, Erin, 2011. "The effects of quarter of birth on academic outcomes at the elementary school level," Economics of Education Review, Elsevier, vol. 30(2), pages 300-311, April.
  52. Deaton, Angus, 1985. "Panel data from time series of cross-sections," Journal of Econometrics, Elsevier, vol. 30(1-2), pages 109-126.
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