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Development, fertility and childbearing age: A Unified Growth Theory

Author

Listed:
  • Hippolyte d'Albis

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris Jourdan Sciences Economiques - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique)

  • Angela Greulich

    (CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, INED - Institut national d'études démographiques)

  • Grégory Ponthière

    (PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris Jourdan Sciences Economiques - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - INRA - Institut National de la Recherche Agronomique - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique, ERUDITE - Equipe de Recherche sur l’Utilisation des Données Individuelles en lien avec la Théorie Economique - UPEM - Université Paris-Est Marne-la-Vallée - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12)

Abstract

During the last century, fertility has exhibited, in industrialized economies, two distinct trends: the cohort total fertility rate follows a decreasing pattern, while the cohort average age at motherhood exhibits a U-shaped pattern. This paper proposes a Unified Growth Theory aimed at rationalizing those two demographic stylized facts. We develop a three-period OLG model with two periods of fertility, and show how a traditional economy, where individuals do not invest in education, and where income rises push towards advancing births, can progressively converge towards a modern economy, where individuals invest in education, and where income rises encourage postponing births. Our findings are illustrated numerically by replicating the dynamics of the quantum and the tempo of births for cohorts 1906–1975 of the Human Fertility Database.

Suggested Citation

  • Hippolyte d'Albis & Angela Greulich & Grégory Ponthière, 2018. "Development, fertility and childbearing age: A Unified Growth Theory," PSE-Ecole d'économie de Paris (Postprint) halshs-01883583, HAL.
    • Handle: RePEc:hal:pseptp:halshs-01883583
    DOI: 10.1016/j.jet.2018.07.004
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    Cited by:

    1. Marie‐Louise Leroux & Pierre Pestieau & Gregory Ponthiere, 2024. "The optimal design of assisted reproductive technologies policies," Health Economics, John Wiley & Sons, Ltd., vol. 33(7), pages 1454-1479, July.
    2. Jelnov, Pavel, 2023. "The marriage age U-shape," Journal of Demographic Economics, Cambridge University Press, vol. 89(2), pages 211-252, June.
    3. Sandra Brée & David de la Croix, 2019. "Key forces behind the decline of fertility: lessons from childlessness in Rouen before the industrial revolution," Cliometrica, Journal of Historical Economics and Econometric History, Association Française de Cliométrie (AFC), vol. 13(1), pages 25-54, January.
    4. Evangelos Dioikitopoulos & Dimitrios Varvarigos, 2023. "Delay in childbearing and the evolution of fertility rates," Journal of Population Economics, Springer;European Society for Population Economics, vol. 36(3), pages 1545-1571, July.
    5. Masaya Yasuoka, 2025. "A Tentative Consideration of the Three-Period Overlapping Generations Model," Discussion Paper Series 292, School of Economics, Kwansei Gakuin University.
    6. Komada, Oliwia, 2024. "Raising America’s future: Search for optimal child-related transfers," Economic Modelling, Elsevier, vol. 138(C).
    7. Canning, David & Mabeu, Marie Christelle & Pongou, Roland, 2020. "Colonial origins and fertility: can the market overcome history?," MPRA Paper 112496, University Library of Munich, Germany.
    8. Abad, Nicolas & Etner, Johanna & Raffin, Natacha & Seegmuller, Thomas, 2025. "New fertility patterns: The role of human versus physical capital," Journal of Economic Theory, Elsevier, vol. 228(C).
    9. Francesca Barigozzi & Helmuth Cremer & Emmanuel Thibault, 2024. "The motherhood wage and income traps," Journal of Population Economics, Springer;European Society for Population Economics, vol. 37(4), pages 1-26, December.
    10. Johanna Etner & Natacha Raffin & Thomas Seegmuller, 2022. "Postponement, career development and fertility rebound," AMSE Working Papers 2225, Aix-Marseille School of Economics, France.
    11. Oliwia Komada, 2023. "Raising America's future: search for optimal child-related transfers," GRAPE Working Papers 84, GRAPE Group for Research in Applied Economics.

    More about this item

    Keywords

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    JEL classification:

    • J11 - Labor and Demographic Economics - - Demographic Economics - - - Demographic Trends, Macroeconomic Effects, and Forecasts
    • J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
    • O12 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Microeconomic Analyses of Economic Development

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