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Measuring low fertility: rethinking demographic methods

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  • José A. Ortega
  • Hans-Peter Kohler

    (Max Planck Institute for Demographic Research, Rostock, Germany)

Abstract

In a low fertility context demographic characteristics like the parity distribution of the population and the timing of births can lead to substantial changes in period fertility. In this article we review the literature on the analysis of fertility by parity and on tempo distortions. Both approaches can be combined through the use of the parity and age fertility model as recently proposed by Kohler and Ortega (2002a). We show applications of the approach for the analysis of both period and cohort fertility. For the analysis of period fertility a new measure is proposed, the Period Fertility Index, which is free from tempo distortions and from the influence of the population parity distribution. The Period Fertility Index is connected to the TFR by two ratios: the mean tempo effect, which generalizes previous work by Bongaarts and Feeney (1998), and the parity composition effect. Besides the period fertility index, all standard life table functions can be defined as synthetic cohort measures including mean ages at birth, interbirth intervals, parity progression rates or the stable parity distribution. From the perspective of cohort fertility it is possible to determine future childbearing intensities for conditional postponement scenarios. These can then be used for cohort completion or fertility forecasting. Examples of the different measures and techniques are given based on recent Swedish data.

Suggested Citation

  • José A. Ortega & Hans-Peter Kohler, 2002. "Measuring low fertility: rethinking demographic methods," MPIDR Working Papers WP-2002-001, Max Planck Institute for Demographic Research, Rostock, Germany.
    • Handle: RePEc:dem:wpaper:wp-2002-001
    DOI: 10.4054/MPIDR-WP-2002-001
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    References listed on IDEAS

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    1. Gunnar Andersson, 2000. "The Impact of Labour-Force Participation on Childbearing Behaviour: Pro-Cyclical Fertility in Sweden during the 1980s and the 1990s," European Journal of Population, Springer;European Association for Population Studies, vol. 16(4), pages 293-333, December.
    2. John Bongaarts & Griffith Feeney, 2000. "On the Quantum and Tempo of Fertility: Reply," Population and Development Review, The Population Council, Inc., vol. 26(3), pages 560-564, September.
    3. Ron Lesthaeghe & Paul Willems, 1999. "Is Low Fertility a Temporary Phenomenon in the European Union?," Population and Development Review, The Population Council, Inc., vol. 25(2), pages 211-228, June.
    4. Lee, Ronald D., 1993. "Modeling and forecasting the time series of US fertility: Age distribution, range, and ultimate level," International Journal of Forecasting, Elsevier, vol. 9(2), pages 187-202, August.
    5. Evert van Imhoff, 2001. "On the impossibility of inferring cohort fertility measures from period fertility measures," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 5(2), pages 23-64.
    6. Heckman, James J & Walker, James R, 1990. "The Relationship between Wages and Income and the Timing and Spacing of Births: Evidence from Swedish Longitudinal Data," Econometrica, Econometric Society, vol. 58(6), pages 1411-1441, November.
    7. Sergei Scherbov & Harrie van Vianen, 2001. "Marriage and Fertility in Russia of Women Born between 1900 and 1960: A Cohort Analysis," European Journal of Population, Springer;European Association for Population Studies, vol. 17(3), pages 281-294, September.
    8. repec:cai:popine:popu_p2001_56n3_0420 is not listed on IDEAS
    9. Donald Akers, 1965. "Cohort fertility versus parity progression as methods of projecting births," Demography, Springer;Population Association of America (PAA), vol. 2(1), pages 414-428, March.
    10. Tuljapurkar, Shripad & Boe, Carl, 1999. "Validation, probability-weighted priors, and information in stochastic forecasts," International Journal of Forecasting, Elsevier, vol. 15(3), pages 259-271, July.
    11. De Cooman, Eric & Ermisch, John F & Joshi, Heather, 1985. "The Next Birth and the Labour Market: A Dynamic Model of Births in England and Wales," CEPR Discussion Papers 37, C.E.P.R. Discussion Papers.
    12. Evert van Imhoff & Nico Keilman, 2000. "On the Quantum and Tempo of Fertility: Comment," Population and Development Review, The Population Council, Inc., vol. 26(3), pages 549-553, September.
    13. Young J. Kim & Robert Schoen, 2000. "On the Quantum and Tempo of Fertility: Limits to the Bongaarts‐Feeney Adjustment," Population and Development Review, The Population Council, Inc., vol. 26(3), pages 554-559, September.
    14. Gunnar Andersson, 1999. "Childbearing Trends in Sweden 1961--1997," European Journal of Population, Springer;European Association for Population Studies, vol. 15(1), pages 1-24, March.
    15. 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, March.
    16. Chal Park, 1976. "Lifetime probability of additional births by age and parity for American women, 1935–1968: A new measurement of period fertility," Demography, Springer;Population Association of America (PAA), vol. 13(1), pages 1-17, February.
    17. Kenneth Land, 2001. "A sensitivity analysis of the bongaarts-feeney method for adjusting bias in observed period total fertility rates," Demography, Springer;Population Association of America (PAA), vol. 38(1), pages 17-28, February.
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    Cited by:

    1. Hans-Peter Kohler & José Antonio Ortega, 2002. "Tempo-Adjusted Period Parity Progression Measures, Fertility Postponement and Completed Cohort Fertility," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 6(6), pages 91-144.
    2. Suzuki, Toru & 鈴木, 透 & スズキ, トオル, 2006. "Lowest-Low Fertility and Governmental Actions in Japan," Discussion Paper 294, Center for Intergenerational Studies, Institute of Economic Research, Hitotsubashi University.
    3. Hans-Peter Kohler & José Antonio Ortega, 2002. "Tempo-Adjusted Period Parity Progression Measures:," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 6(7), pages 145-190.
    4. Gunnar Andersson, 2002. "Fertility developments in Norway and Sweden since the early 1960s," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 6(4), pages 67-86.
    5. Dimiter Philipov, 2002. "Fertility in times of discontinuous societal change: the case of Central and Eastern Europe," MPIDR Working Papers WP-2002-024, Max Planck Institute for Demographic Research, Rostock, Germany.
    6. Tomáš Sobotka, 2003. "Tempo-quantum and period-cohort interplay in fertility changes in Europe," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 8(6), pages 151-214.
    7. Hans‐Peter Kohler & Francesco C. Billari & José Antonio Ortega, 2002. "The Emergence of Lowest‐Low Fertility in Europe During the 1990s," Population and Development Review, The Population Council, Inc., vol. 28(4), pages 641-680, December.
    8. Mathías Nathan & Ignacio Pardo & Wanda Cabella, 2016. "Diverging patterns of fertility decline in Uruguay," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 34(20), pages 563-586.
    9. Aart C. Liefbroer & Dimiter Philipov & Francesco C. Billari, 2006. "The Postponement of Childbearing in Europe: Driving Forces and Implications," Vienna Yearbook of Population Research, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna, vol. 4(1), pages 1-17.

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    JEL classification:

    • J1 - Labor and Demographic Economics - - Demographic Economics
    • Z0 - Other Special Topics - - General

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