Fertility in the absence of self-control
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DOI: 10.1016/j.mathsocsci.2013.02.001
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- Bertrand Wigniolle, 2011. "Fertility in the absence of self-control," Post-Print halshs-00565321, HAL.
- Bertrand Wigniolle, 2013. "Fertility in the absence of self-control," Post-Print halshs-00823264, HAL.
- Bertrand Wigniolle, 2011. "Fertility in the absence of self-control," Documents de travail du Centre d'Economie de la Sorbonne 11007, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- Bertrand Wigniolle, 2013. "Fertility in the absence of self-control," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00823264, HAL.
- Bertrand Wigniolle, 2008. "Fertility in the absence of self-control," Documents de travail du Centre d'Economie de la Sorbonne v08068, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- Bertrand Wigniolle, 2008. "Fertility in the absence of self-control," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00344463, HAL.
- Bertrand Wigniolle, 2008. "Fertility in the absence of self-control," Post-Print halshs-00344463, HAL.
- Bertrand Wigniolle, 2013. "Fertility in the absence of self-control," PSE-Ecole d'économie de Paris (Postprint) halshs-00823264, HAL.
- Bertrand Wigniolle, 2011. "Fertility in the absence of self-control," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00565321, HAL.
References listed on IDEAS
- Wigniolle, Bertrand, 2012.
"Savings behavior with imperfect capital markets: When hyperbolic discounting leads to discontinuous strategies,"
Economics Letters, Elsevier, vol. 116(2), pages 186-189.
- Bertrand Wigniolle, 2011. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," Documents de travail du Centre d'Economie de la Sorbonne 11028, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- Bertrand Wigniolle, 2011. "Savings behavior with imperfect capital markets : when hyperbolic discounting leads to discontinuous strategies," Post-Print halshs-00594060, HAL.
- Bertrand Wigniolle, 2012. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00684210, HAL.
- Bertrand Wigniolle, 2012. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," Post-Print halshs-00684210, HAL.
- Bertrand Wigniolle, 2011. "Savings behavior with imperfect capital markets : when hyperbolic discounting leads to discontinuous strategies," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00594060, HAL.
- Bertrand Wigniolle, 2012. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," PSE-Ecole d'économie de Paris (Postprint) halshs-00684210, HAL.
- Becker, Gary S & Tomes, Nigel, 1976.
"Child Endowments and the Quantity and Quality of Children,"
Journal of Political Economy, University of Chicago Press, vol. 84(4), pages 143-162, August.
- Gary S. Becker & Nigel Tomes, 1976. "Child Endowments, and the Quantity and Quality of Children," NBER Working Papers 0123, National Bureau of Economic Research, Inc.
- Birdsall, Nancy, 1988. "Economic approaches to population growth," Handbook of Development Economics, in: Hollis Chenery & T.N. Srinivasan (ed.), Handbook of Development Economics, edition 1, volume 1, chapter 12, pages 477-542, Elsevier.
- Harris, Christopher & Laibson, David, 2001.
"Dynamic Choices of Hyperbolic Consumers,"
Econometrica, Econometric Society, vol. 69(4), pages 935-957, July.
- Christopher Harris & David Laibson, 1999. "Dynamic Choices of Hyperbolic Consumers," Harvard Institute of Economic Research Working Papers 1886, Harvard - Institute of Economic Research.
- George Loewenstein & Richard H Thaler, 2003. "Anomalies: Intertemporal Choice," Levine's Working Paper Archive 618897000000000784, David K. Levine.
- Gary S. Becker & Kevin M. Murphy & Robert Tamura, 1994.
"Human Capital, Fertility, and Economic Growth,"
NBER Chapters, in: Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, Third Edition, pages 323-350,
National Bureau of Economic Research, Inc.
- Becker, Gary S & Murphy, Kevin M & Tamura, Robert, 1990. "Human Capital, Fertility, and Economic Growth," Journal of Political Economy, University of Chicago Press, vol. 98(5), pages 12-37, October.
- Gary S. Becker & Kevin M. Murphy & Robert Tamura, "undated". "Human Capital, Fertility, and Economic Growth," University of Chicago - Population Research Center 90-5a, Chicago - Population Research Center.
- Gary S. Becker & Kevin M. Murphy & Robert F. Tamura, 1990. "Human Capital, Fertility, and Economic Growth," NBER Working Papers 3414, National Bureau of Economic Research, Inc.
- Salanie, Francois & Treich, Nicolas, 2006.
"Over-savings and hyperbolic discounting,"
European Economic Review, Elsevier, vol. 50(6), pages 1557-1570, August.
- François Salanie & Nicolas N. Treich, 2006. "Over-savings and hyperbolic discounting," Post-Print hal-02663421, HAL.
- David de la Croix & Matthias Doepke, 2003.
"Inequality and Growth: Why Differential Fertility Matters,"
American Economic Review, American Economic Association, vol. 93(4), pages 1091-1113, September.
- DE LA CROIX, David & DOEPKE, Matthias, 2001. "Inequality and Growth : Why Differential Fertility Matters," LIDAM Discussion Papers IRES 2001008, Université catholique de Louvain, Institut de Recherches Economiques et Sociales (IRES).
- DE LA CROIX, David & DOEPKE, Matthias, 2003. "Inequality and growth: why differential fertility matters," LIDAM Reprints CORE 1676, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- David de la Croix & Matthias Doepke, 2001. "Inequality and Growth: Why Differential Fertility Matters," UCLA Economics Working Papers 803, UCLA Department of Economics.
- Larry E. Jones & Alice Schoonbroodt, 2010.
"Complements Versus Substitutes And Trends In Fertility Choice In Dynastic Models,"
International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 51(3), pages 671-699, August.
- Larry E. Jones & Alice Schoonbroodt, 2007. "Complements versus Substitutes and Trends in Fertility Choice in Dynastic Models," NBER Working Papers 13680, National Bureau of Economic Research, Inc.
- Chen, Zhiqi & Woolley, Frances, 2001.
"A Cournot-Nash Model of Family Decision Making,"
Economic Journal, Royal Economic Society, vol. 111(474), pages 722-748, October.
- Zhiqi Chen & Frances Woolley, 1999. "A Cournot-Nash Model of Family Decision Making," Carleton Economic Papers 99-13, Carleton University, Department of Economics, revised Oct 2001.
- Gary S. Becker & Robert J. Barro, 1988.
"A Reformulation of the Economic Theory of Fertility,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 103(1), pages 1-25.
- Gary S. Becker & Robert J. Barro, "undated". "A Reformulation of the Economic Theory of Fertility," University of Chicago - Population Research Center 85-11, Chicago - Population Research Center.
- Gary S. Becker & Robert J. Barro, 1986. "A Reformulation of the Economic Theory of Fertility," NBER Working Papers 1793, National Bureau of Economic Research, Inc.
- Matthias Wrede, 2011. "Hyperbolic discounting and fertility," Journal of Population Economics, Springer;European Society for Population Economics, vol. 24(3), pages 1053-1070, July.
- David Laibson, 1997.
"Golden Eggs and Hyperbolic Discounting,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 112(2), pages 443-478.
- Laibson, David I., 1997. "Golden Eggs and Hyperbolic Discounting," Scholarly Articles 4481499, Harvard University Department of Economics.
- Gary S. Becker & H. Gregg Lewis, 1974.
"Interaction between Quantity and Quality of Children,"
NBER Chapters, in: Economics of the Family: Marriage, Children, and Human Capital, pages 81-90,
National Bureau of Economic Research, Inc.
- Becker, Gary S & Lewis, H Gregg, 1973. "On the Interaction between the Quantity and Quality of Children," Journal of Political Economy, University of Chicago Press, vol. 81(2), pages 279-288, Part II, .
- Diamond, Peter & Koszegi, Botond, 2003. "Quasi-hyperbolic discounting and retirement," Journal of Public Economics, Elsevier, vol. 87(9-10), pages 1839-1872, September.
- repec:hal:pseose:halshs-00684210 is not listed on IDEAS
- Andreoni, James, 1989. "Giving with Impure Altruism: Applications to Charity and Ricardian Equivalence," Journal of Political Economy, University of Chicago Press, vol. 97(6), pages 1447-1458, December.
- Loewenstein, George & Thaler, Richard H, 1989. "Intertemporal Choice," Journal of Economic Perspectives, American Economic Association, vol. 3(4), pages 181-193, Fall.
- repec:cor:louvrp:-1676 is not listed on IDEAS
- David N. Weil & Oded Galor, 2000.
"Population, Technology, and Growth: From Malthusian Stagnation to the Demographic Transition and Beyond,"
American Economic Review, American Economic Association, vol. 90(4), pages 806-828, September.
- Oded Galor & David N. Weil, 1999. "Population, Technology, and Growth: From Malthusian Stagnation to the Demographic Transition and Beyond," Working Papers 99-35, Brown University, Department of Economics.
- Robert J. Barro, 1999. "Ramsey Meets Laibson in the Neoclassical Growth Model," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 114(4), pages 1125-1152.
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As found by EconAcademics.org, the blog aggregator for Economics research:- Fertility and self-control
by Economic Logician in Economic Logic on 2011-03-18 19:03:00
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Cited by:
- Wigniolle, Bertrand, 2012.
"Savings behavior with imperfect capital markets: When hyperbolic discounting leads to discontinuous strategies,"
Economics Letters, Elsevier, vol. 116(2), pages 186-189.
- Bertrand Wigniolle, 2011. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," Documents de travail du Centre d'Economie de la Sorbonne 11028, Université Panthéon-Sorbonne (Paris 1), Centre d'Economie de la Sorbonne.
- Bertrand Wigniolle, 2011. "Savings behavior with imperfect capital markets : when hyperbolic discounting leads to discontinuous strategies," Post-Print halshs-00594060, HAL.
- Bertrand Wigniolle, 2012. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00684210, HAL.
- Bertrand Wigniolle, 2012. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," Post-Print halshs-00684210, HAL.
- Bertrand Wigniolle, 2011. "Savings behavior with imperfect capital markets : when hyperbolic discounting leads to discontinuous strategies," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) halshs-00594060, HAL.
- Bertrand Wigniolle, 2012. "Savings behavior with imperfect capital markets: when hyperbolic discounting leads to discontinuous strategies," PSE-Ecole d'économie de Paris (Postprint) halshs-00684210, HAL.
- Jia Cao & Minghao Li, 2022. "Hyperbolic discounting in an intergenerational model with altruistic parents," Journal of Population Economics, Springer;European Society for Population Economics, vol. 35(3), pages 989-1005, July.
- Matthias Wrede, 2011. "Hyperbolic discounting and fertility," Journal of Population Economics, Springer;European Society for Population Economics, vol. 24(3), pages 1053-1070, July.
- Paula Eugenia Gobbi & Marc Goñi, 2020. "Childless Aristocrats. Inheritance and the Extensive Margin of Fertility," Working Papers ECARES 2020-03, ULB -- Universite Libre de Bruxelles.
- Paula Eugenia Gobbi & Marc Goñi, 2020. "Childless Aristocrats. Inheritance and the extensive margin of fertility," ULB Institutional Repository 2013/316217, ULB -- Universite Libre de Bruxelles.
- Paula E Gobbi & Marc Goñi, 2021.
"Childless Aristocrats: Inheritance and the Extensive Margin of Fertility,"
The Economic Journal, Royal Economic Society, vol. 131(637), pages 2089-2118.
- Gobbi, Paula Eugenia & Goñi, Marc, 2018. "Childless Aristocrats. Inheritance and the extensive margin of fertility," CEPR Discussion Papers 12744, C.E.P.R. Discussion Papers.
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More about this item
JEL classification:
- D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
- 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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