Abstract
Demographers and sociologists have studied why women remain childless for more than two decades; however, this specific choice of zero fertility has not interested economists. Permanent childlessness, in developed countries, can concern up to 30 % of the women in a cohort. Childlessness rates can be positively related to average fertility for some cohorts of women. This paper provides an explanation for this using an endogenous fertility model where individuals have different preferences for children. The main mechanism considered goes through the intergenerational evolution of preferences: I show that a reduction in the gender wage gap, or an increase in the fixed cost of becoming a parent, has a negative effect on both fertility and childlessness. The reduction of childlessness is due to a composition effect: small families shrink more than larger families, and this reduces childlessness.
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Notes
In the USA, the Census Bureau reveals that the number of children ever born (CEB) per woman aged 40–44 years old was 2.86 in 1981 and 1.86 in 2006; the childlessness rate for this cohort of women has increased from 9.5 to 20.4 %.
Murray and Lagger (2001) show that childless men who graduated from an Amherst College in Massachusetts between 1861 and 1899 married in average later than fathers.
Preference Theory distinguishes between family-oriented, career-oriented, and adaptive women. For a test of whether Preference Theory can explain low fertility levels for some European countries, see Vitali et al. (2009).
For the Netherlands, the correlation coefficient between the cohort (total) fertility rate and childlessness for women born between 1900 and 1954 is 0.60 (see separate Appendix).
For the evolution of completed fertility for these cohorts, see Jones and Tertilt (2008).
See Bianchi et al. (2004) for an analysis on parental time investment on children.
This is in line with the traditional approach to analyze household choices, i.e., Barro and Becker (1986). For a comparison with the collective and nash-bargaining approaches, see Manser and Brown (1980) and McElroy and Horney (1981). Mazzocco (2007) empirically rejects intra-household commitment on the domestic allocation of resources in a unitary lifetime decision model, but as no paper has looked at the dynamics of both childlessness and fertility within any framework, this is a natural starting point.
Cigno (2012) provides a theoretical analysis on marriage commitment and the efficient allocation of childcare within a couple.
Note that with no fixed cost (k = 0), we would still have childlessness for values such that \(\gamma^j \leq \frac{\theta w^\textrm{f}_t}{w^\textrm{m}_t+w^\textrm{f}_t}\).
γ j > θ ensures that fertility is positive for at least some values of \(w^\textrm{f}_t\).
The cases a = b and a < b as well as an analysis with endogenous probabilities are provided in a separate Appendix. In particular, assuming exogenous probabilities leads to the same kind of results obtained when a and b depend on both the willingness of children of the parents and the average fertility of the population. The empirical justification for this type of extension is provided in Fernández and Fogli (2006).
This choice is coherent with the estimates of Acemoglu et al. (2004).
Turchi (1975, Tables 3–5, p. 92).
See also Burda et al. (2006) for a comparison.
The dynamics of z remain monotonic, and the relationships between n and χ, l and χ, and \(w^\textrm{f}/w^\textrm{m}\) and χ, along the transition path remain the same if we simulate with ρ = 1 (i.e., \(L^\textrm{m}\) and \(L^{\textrm{f}}\) are complements). The parameter that changes the most is the distribution parameter α, which increases to 0.742.
Empirical evidence for this type of shock is supported by the results of O’Neill and Polachek (1993).
See Goldin (1990) for a historical analysis on the gender wage gap.
For real index of housing prices, see Fig. 1 Skinner (1991).
References
Acemoglu D, Autor DH, David L (2004) Women, war, and wages: the effect of female labor supply on the wage structure at midcentury. J Polit Econ 112(3):497–551
Barro RJ, Becker GS (1986) Altruism and the economic theory of fertility. Popul Dev Rev Suppl 12:69–76
Baudin T, de la Croix D, Gobbi P (2012) DINKs, DEWKs and Co., marriage, fertility and childlessness in the United States. IRES Discuss Pap 2012/13
Becker GS (1981) A treatise on the family. Enlarged edition. Harvard University Press, Cambridge.
Bianchi S, Robinson J, Sayer L (2004) Are parents investing less in children? Trends in mothers’ and fathers’ time with children. Am J Sociol 110(1):1–43
Bisin A, Verdier T (2001) The economics of cultural transmission and the dynamics of preferences. J Econ Theory 97(2):298–319
Burda M, Hamermesh DS, Weil P (2006) Total work, gender and social norms. NBER Work Pap 13000
Census Bureau (2006) Table SF2. Distribution of women 40 to 44 years old by number of children ever born and marital status: selected years, 1970 to 2010. http://www.census.gov/hhes/fertility/data/cps/supplemental.html. Accessed 24 Oct 2012
Cigno A (1991) Economics of the family. Oxford University Press, New York
Cigno A (2012) Marriage as a commitment device. Rev Econ Househ 10(2):193–213
de la Croix D, Doepke M (2003) Inequality and growth: why differential fertility matters. Am Econ Rev 93(4):1091–1113
de la Croix D, Licandro O (2012) The child is father of the man: implications for the demographic transition. Econ J. doi:10.1111/j.1468-0297.2012.02523.x
de Jong GF, Sell RR (1977) Changes in childlessness in the United States: a demographic path analysis. Popul Stud 31(1):129–141
Doepke M, Hazan M, Maoz YD (2007) The baby boom and world war II: a macroeconomic analysis. NBER Work Pap 13707
Erosa A, Fuster L, Restuccia D (2005) A quantitative theory of the gender gap in wages. IMDEA Work Pap Ser Econ Soc Sci 2010/04
Fernández R, Fogli A (2006) Fertility: the role of culture and family experience. J Eur Econ Assoc 4(2-3):552–561
Galor O, Weil DN (1996) The gender gap, fertility, and growth. Am Econ Rev 86(3):374–387
Goldin C (1990) Understanding the gender gap: an economic history of American women. Oxford University Press, New York
Hakim C (2000) Work-lifestyle choices in the 21st century. Oxford University Press, Oxford
Hakim C (2003) A new approach to explaining fertility patterns: preference theory. Popul Dev Rev 29(3):349–374
Houseknecht SK (1982) Voluntary childlessness: toward a theoretical integration. J Fam Issues 3(4):459–471
Jones LE, Manuelli RE, McGrattan ER (2003) Why are married women working so much? Fed Reserve Bank Minneap, Staff Rep
Jones LE, Tertilt M (2008) An economic history of fertility in the US: 1826–1960. In: Rupert P (ed) Frontiers of family economics, chapter 5
Kiernan KE (1989) Who remains childless? J Biosoc Sci 21(4):387–398
Livi-Bacci M (1977) A history of Italian fertility during the last two centuries. Princeton University Press, Princeton
Manser M, Brown M (1980) Marriage and household decision making: a bargaining analysis. Int Econ Rev 21(1):31–44
Mazzocco M (2007) Household intertemporal behaviour: a collective characterization and a test of commitment. Rev Econ Stud 74(3):857–895
McElroy MB, Horney MJ (1981) Nash-bargained household decisions: toward a generalization of the theory of demand. Int Econ Rev 22(2):333–349
McFalls JA (1979) Frustrated fertility: a population paradox. Popul Bull 34(2):3–43
Mencarini L, Tanturri ML (2006) High fertility or childlessness: micro-level determinants of reproductive behaviour in Italy. Popul 61(4):389–415
Mencarini L, Tanturri ML (2008) Childless or childfree? An insight into voluntary childlessness in Italy. Popul Dev Rev 34(1):51–77
Morgan PS (1991) Late nineteenth—and early twentieth—century childlessness. Am J Sociol 97(3):779–807
Murray JE, Lagger BA (2001) Involuntary childlessness and voluntary fertility control during the fertility transition: evidence from men who graduated from an American college. Popul Stud 55(1):25–36
O’Neill J, Polachek S (1993) Why the gender gap in wages narrowed in the 1980s. J Labor Econ 11(1):205–228
Poston DL, Trent K (1982) International variability in childlessness: a descriptive and analytical study. J Fam Issues 3(4):473–491
Rowland DT (2007) Historical trends in childlessness. J Fam Issues 28(10):1311–1337
Ruggles S, Trent JA, Genadek K, Goeken R, Schroeder MB, Sobek M (2010) Integrated public use microdata series: version 5.0 [Machine-readable database]. University of Minnesota, Minneapolis
Skinner J (1991) Housing and saving in the United States. NBER Work Pap 3874
Toulemon L (1996) Very few couples remain voluntarily childless. Popul 8:1–27
Turchi BA (1975) The demand for children: the economics of fertility in the United States. Ballinger, Cambridge
van de Kaa DJ (1987) Europe’s second demographic transition. Popul Bull 42(1):1–59
Vitali A, Billari F, Prskawetz A, Testa MR (2009) Preference Theory and low fertility: a comparative perspective. Eur J Popul 25(4):413–438
Acknowledgements
I thank two referees, Thomas Baudin, Raouf Boucekkine, Hippolyte d’Albis, Matthias Doepke, David de la Croix, Axel Gosseries, Ross Guest, Fabio Mariani, Alexia Prskawetz, and Alice Schoonbroodt for helpful comments and references. I also acknowledge the financial support of the Belgian–French speaking community (Grant ARC 009-14018 on “Sustainability”).
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Gobbi, P.E. A model of voluntary childlessness. J Popul Econ 26, 963–982 (2013). https://doi.org/10.1007/s00148-012-0457-1
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DOI: https://doi.org/10.1007/s00148-012-0457-1