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Relaxing the Biological Clock: Can More Time Reduce Fertility?

Author

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  • Martín Rossi

    (Universidad de San Andrés)

Abstract

Egg freezing relaxes the biological deadline associated with female fertility and is widely viewed as an empowering technology expected to increase lifetime fertility. This paper challenges that intuition. We develop a finite-horizon dynamic stopping model in which fertility initiation requires the simultaneous alignment of multiple, imperfectly persistent dimensions, including partnership quality, economic conditions, and personal readiness. Initiating childbearing is irreversible and occurs only when the joint realization of these evolving states exceeds an endogenous reservation threshold. By lowering the hazard of irreversible infertility, egg freezing increases the continuation value of waiting and raises this reservation standard. Individuals optimally become more selective. However, the technology insures only against biological decline, not against partnership instability or the tightening of other age-dependent constraints. When these dimensions do not improve with age, greater selectivity can delay initiation and reduce the probability of crossing the threshold within a finite horizon. As a result, relaxing the biological deadline can reduce fertility initiation and expected completed fertility in a non-empty region of parameters. We derive formal propositions and discuss empirical implications.

Suggested Citation

  • Martín Rossi, 2026. "Relaxing the Biological Clock: Can More Time Reduce Fertility?," Working Papers 181, Universidad de San Andres, Departamento de Economia, revised Feb 2026.
    • Handle: RePEc:sad:wpaper:181
    as

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    File URL: https://repec.udesa.edu.ar/pub/econ/doc181.pdf
    File Function: First version, February 2026
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    References listed on IDEAS

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    1. Matthew Rabin & Ted O'Donoghue, 1999. "Doing It Now or Later," American Economic Review, American Economic Association, vol. 89(1), pages 103-124, March.
    2. Robert Shimer & Lones Smith, 2000. "Assortative Matching and Search," Econometrica, Econometric Society, vol. 68(2), pages 343-370, March.
    3. Marco Francesconi, 2002. "A Joint Dynamic Model of Fertility and Work of Married Women," Journal of Labor Economics, University of Chicago Press, vol. 20(2), pages 336-380, Part.
    4. Jérôme Adda & Christian Dustmann & Katrien Stevens, 2017. "The Career Costs of Children," Journal of Political Economy, University of Chicago Press, vol. 125(2), pages 293-337.
    5. Avinash K. Dixit & Robert S. Pindyck, 1994. "Investment under Uncertainty," Economics Books, Princeton University Press, edition 1, number 5474, December.
    6. Robert McDonald & Daniel Siegel, 1986. "The Value of Waiting to Invest," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 101(4), pages 707-727.
    Full references (including those not matched with items on IDEAS)

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    Keywords

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    JEL classification:

    • J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • I15 - Health, Education, and Welfare - - Health - - - Health and Economic Development

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