The fertility pattern of twins and the general population compared: evidence from Danish cohorts 1945-64
Twin studies provide an important possibility for demographers to analyze patterns of heritability and to estimate structural models with controls for endowments. These possibilities are increasingly used in the context of fertility and related behaviors. A close congruence between the fertility patterns of twins and that of the general population, however, is an essential pre-condition in order to generalize the results of twin-based investigations of fertility and related behaviors to the general population. In this paper we therefore compare the fertility of Danish twins born 1945-64 to the fertility pattern of the general population born during the same period. Our analyses find a very close correspondence between the fertility pattern of twins and of the general population. There exist only few statistically significant differences, and the primary difference pertains to the fact that female twins have a slightly later onset of childbearing than non-twins. There are virtually no relevant differences between the fertility patterns of dizygotic and monozygotic twins.
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Rosenzweig, Mark R & Wolpin, Kenneth I, 1980. "Life-Cycle Labor Supply and Fertility: Causal Inferences from Household Models," Journal of Political Economy, University of Chicago Press, vol. 88(2), pages 328-348, April.
- Heckman, James J & Hotz, V Joseph & Walker, James R, 1985.
"New Evidence on the Timing and Spacing of Births,"
American Economic Review,
American Economic Association, vol. 75(2), pages 179-184, May.
- James J. Heckman & V. Joseph Hotz & James R. Walker, "undated". "New Evidence on the Timing and Spacing of Births," University of Chicago - Population Research Center 85-1, Chicago - Population Research Center.
- Bronars, Stephen G & Grogger, Jeff, 1994. "The Economic Consequences of Unwed Motherhood: Using Twin Births as a Natural Experiment," American Economic Review, American Economic Association, vol. 84(5), pages 1141-1156, December.
- Tomas Frejka & Gérard Calot, 2001. "Cohort Reproductive Patterns in Low-Fertility Countries," Population and Development Review, The Population Council, Inc., vol. 27(1), pages 103-132.
- Behrman, Jere R. & Rosenzweig, Mark R., 1999. ""Ability" biases in schooling returns and twins: a test and new estimates," Economics of Education Review, Elsevier, vol. 18(2), pages 159-167, April.
- Manski, C.F., 1992. "Identification Problems in the Social Sciences," Working papers 9217, Wisconsin Madison - Social Systems.
- Rosenzweig, Mark R & Wolpin, Kenneth I, 1980. "Testing the Quantity-Quality Fertility Model: The Use of Twins as a Natural Experiment," Econometrica, Econometric Society, vol. 48(1), pages 227-240, January.
- repec:cai:popine:popu_p2001_56n3_0420 is not listed on IDEAS
- White, Halbert, 1980. "A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity," Econometrica, Econometric Society, vol. 48(4), pages 817-838, May.
- Hans-Peter Kohler & Axel Skytthe & Kaare Christensen, 2001. "The age at first birth and completed fertility reconsidered: findings from a sample of identical twins," MPIDR Working Papers WP-2001-006, Max Planck Institute for Demographic Research, Rostock, Germany.
- Francesco C. Billari & Hans-Peter Kohler, 2000. "The impact of union formation dynamics on first births in West Germany and Italy: are there signs of convergence?," MPIDR Working Papers WP-2000-008, Max Planck Institute for Demographic Research, Rostock, Germany.
- Jere R. Behrman & Mark R. Rosenzweig, 2002. "Does Increasing Women's Schooling Raise the Schooling of the Next Generation?," American Economic Review, American Economic Association, vol. 92(1), pages 323-334, March.
- Hans-Peter Kohler & Joseph L. Rodgers & Kaare Christensen, 1999. "Is Fertility Behavior in Our Genes? Findings from a Danish Twin Study," Population and Development Review, The Population Council, Inc., vol. 25(2), pages 253-288.
- Behrman, Jere R & Rosenzweig, Mark R & Taubman, Paul, 1996. "College Choice and Wages: Estimates Using Data on Female Twins," The Review of Economics and Statistics, MIT Press, vol. 78(4), pages 672-685, November.
- Orley Ashenfelter & Cecilia Rouse, 1998. "Income, Schooling, and Ability: Evidence from a New Sample of Identical Twins," The Quarterly Journal of Economics, Oxford University Press, vol. 113(1), pages 253-284.
- Orley Ashenfelter & Cecilia Rouse, 1997. "Income, Schooling, and Ability: Evidence from a New Sample of Identical Twins," NBER Working Papers 6106, National Bureau of Economic Research, Inc.
- Hans-Peter Kohler & José A. Ortega, 2001. "Period parity progression measures with continued fertility postponement: a new look at the implications of delayed childbearing for cohort fertility," MPIDR Working Papers WP-2001-001, Max Planck Institute for Demographic Research, Rostock, Germany.
- Behrman, Jere R & Rosenzweig, Mark R & Taubman, Paul, 1994. "Endowments and the Allocation of Schooling in the Family and in the Marriage Market: The Twins Experiment," Journal of Political Economy, University of Chicago Press, vol. 102(6), pages 1131-1174, December. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:dem:wpaper:wp-2002-005. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Peter Wilhelm)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.