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Maternal Investments in Children: The Role of Expected Effort and Returns

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  • Bhalotra, Sonia R.

    (University of Warwick)

  • Delavande, Adeline

    (University of Technology, Sydney)

  • Gilabert, Paulino Font

    (University of Essex)

  • Maselko, Joanna

    (University of North Carolina, Chapel Hill)

Abstract

We investigate the importance of subjective expectations of returns to and effort costs of the two main investments that mothers make in newborns: breastfeeding and stimulation. We find heterogeneity across mothers in expected effort costs and expected returns for outcomes in the cognitive, socio-emotional and health domains, and we show that this contributes to explaining heterogeneity in investments. We find no significant heterogeneity in preferences for child developmental outcomes. We simulate the impact of various policies on investments. Our findings highlight the relevance of interventions designed to reduce perinatal fatigue alongside interventions that increase perceived returns to investments.

Suggested Citation

  • Bhalotra, Sonia R. & Delavande, Adeline & Gilabert, Paulino Font & Maselko, Joanna, 2020. "Maternal Investments in Children: The Role of Expected Effort and Returns," IZA Discussion Papers 13056, Institute of Labor Economics (IZA).
  • Handle: RePEc:iza:izadps:dp13056
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    1. Douglas Almond & Bhashkar Mazumder, 2013. "Fetal Origins and Parental Responses," Annual Review of Economics, Annual Reviews, vol. 5(1), pages 37-56, May.
    2. Adams-Prassl, Abigail & Andrew, Alison, 2019. "Preferences and Beliefs in the Marriage Market for Young Brides," CEPR Discussion Papers 13567, C.E.P.R. Discussion Papers.
    3. James J. Heckman & Stefano Mosso, 2014. "The Economics of Human Development and Social Mobility," Annual Review of Economics, Annual Reviews, vol. 6(1), pages 689-733, August.
    4. Elizabeth M. Caucutt & Lance Lochner & Youngmin Park, 2017. "Correlation, Consumption, Confusion, or Constraints: Why Do Poor Children Perform so Poorly?," Scandinavian Journal of Economics, Wiley Blackwell, vol. 119(1), pages 102-147, January.
    5. Jeff Dominitz & Charles F. Manski, 2011. "Measuring and interpreting expectations of equity returns," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 26(3), pages 352-370, April.
    6. Philipp Eisenhauer & James J. Heckman & Stefano Mosso, 2015. "Estimation Of Dynamic Discrete Choice Models By Maximum Likelihood And The Simulated Method Of Moments," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 56(2), pages 331-357, May.
    7. James Heckman & Flavio Cunha, 2007. "The Technology of Skill Formation," American Economic Review, American Economic Association, vol. 97(2), pages 31-47, May.
    8. Flavio Cunha & James Heckman & Salvador Navarro, 2005. "Separating uncertainty from heterogeneity in life cycle earnings," Oxford Economic Papers, Oxford University Press, vol. 57(2), pages 191-261, April.
    9. Arcidiacono, Peter & Hotz, V. Joseph & Kang, Songman, 2012. "Modeling college major choices using elicited measures of expectations and counterfactuals," Journal of Econometrics, Elsevier, vol. 166(1), pages 3-16.
    10. Orazio Attanasio & Sarah Cattan & Emla Fitzsimons & Costas Meghir & Marta Rubio-Codina, 2020. "Estimating the Production Function for Human Capital: Results from a Randomized Controlled Trial in Colombia," American Economic Review, American Economic Association, vol. 110(1), pages 48-85, January.
    11. Douglas Almond & Janet Currie & Valentina Duque, 2018. "Childhood Circumstances and Adult Outcomes: Act II," Journal of Economic Literature, American Economic Association, vol. 56(4), pages 1360-1446, December.
    12. Seema Jayachandran & Ilyana Kuziemko, 2011. "Why Do Mothers Breastfeed Girls Less than Boys? Evidence and Implications for Child Health in India," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 126(3), pages 1485-1538.
    13. Gary S. Becker & Nigel Tomes, 1994. "Human Capital and the Rise and Fall of Families," NBER Chapters, in: Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, Third Edition, pages 257-298, National Bureau of Economic Research, Inc.
    14. Frank Schilbach & Heather Schofield & Sendhil Mullainathan, 2016. "The Psychological Lives of the Poor," American Economic Review, American Economic Association, vol. 106(5), pages 435-440, May.
    15. Adeline Delavande, 2008. "Pill, Patch, Or Shot? Subjective Expectations And Birth Control Choice," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 49(3), pages 999-1042, August.
    16. Mark Huggett & Gustavo Ventura & Amir Yaron, 2011. "Sources of Lifetime Inequality," American Economic Review, American Economic Association, vol. 101(7), pages 2923-2954, December.
    17. Victoria Baranov & Sonia Bhalotra & Pietro Biroli & Joanna Maselko, 2020. "Maternal Depression, Women's Empowerment, and Parental Investment: Evidence from a Randomized Controlled Trial," American Economic Review, American Economic Association, vol. 110(3), pages 824-859, March.
    18. Bhalotra, Sonia R. & Venkataramani, Atheendar, 2013. "Cognitive Development and Infectious Disease: Gender Differences in Investments and Outcomes," IZA Discussion Papers 7833, Institute of Labor Economics (IZA).
    19. Ralph Stinebrickner & Todd Stinebrickner, 2014. "Academic Performance and College Dropout: Using Longitudinal Expectations Data to Estimate a Learning Model," Journal of Labor Economics, University of Chicago Press, vol. 32(3), pages 601-644.
    20. Elizabeth M. Caucutt & Lance Lochner, 2020. "Early and Late Human Capital Investments, Borrowing Constraints, and the Family," Journal of Political Economy, University of Chicago Press, vol. 128(3), pages 1065-1147.
    21. Charles F. Manski, 2004. "Measuring Expectations," Econometrica, Econometric Society, vol. 72(5), pages 1329-1376, September.
    22. Emla Fitzsimons & Marcos Vera-Hernandez, 2013. "Food for Thought? Breastfeeding and Child Development," IFS Working Papers W13/31, Institute for Fiscal Studies.
    23. Victor Lavy & Giulia Lotti & Zizhong Yan, 2022. "Empowering Mothers and Enhancing Early Childhood Investment: Effect on Adults’ Outcomes and Children’s Cognitive and Noncognitive Skills," Journal of Human Resources, University of Wisconsin Press, vol. 57(3), pages 821-867.
    24. Matthew Wiswall & Basit Zafar, 2018. "Preference for the Workplace, Investment in Human Capital, and Gender," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 133(1), pages 457-507.
    25. Adeline Delavande, 2014. "Probabilistic Expectations in Developing Countries," Annual Review of Economics, Annual Reviews, vol. 6(1), pages 1-20, August.
    26. Teodora Boneva & Christopher Rauh, 2018. "Parental Beliefs about Returns to Educational Investments—The Later the Better?," Journal of the European Economic Association, European Economic Association, vol. 16(6), pages 1669-1711.
    27. Flavio Cunha & James J. Heckman & Susanne M. Schennach, 2010. "Estimating the Technology of Cognitive and Noncognitive Skill Formation," Econometrica, Econometric Society, vol. 78(3), pages 883-931, May.
    28. Adeline Delavande & Hans-Peter Kohler, 2009. "Subjective expectations in the context of HIV/AIDS in Malawi," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 20(31), pages 817-875.
    29. Biroli, Pietro & Boneva, Teodora & Raja, Akash & Rauh, Christopher, 2022. "Parental beliefs about returns to child health investments," Journal of Econometrics, Elsevier, vol. 231(1), pages 33-57.
    30. John Ifcher & Homa Zarghamee, 2011. "Happiness and Time Preference: The Effect of Positive Affect in a Random-Assignment Experiment," American Economic Review, American Economic Association, vol. 101(7), pages 3109-3129, December.
    31. Grossman, Michael, 1972. "On the Concept of Health Capital and the Demand for Health," Journal of Political Economy, University of Chicago Press, vol. 80(2), pages 223-255, March-Apr.
    32. Todd Stinebrickner & Ralph Stinebrickner, 2012. "Learning about Academic Ability and the College Dropout Decision," Journal of Labor Economics, University of Chicago Press, vol. 30(4), pages 707-748.
    33. Heckman, James J. & Humphries, John Eric & Kautz, Tim (ed.), 2014. "The Myth of Achievement Tests," University of Chicago Press Economics Books, University of Chicago Press, number 9780226100098.
    34. Arcidiacono, Peter, 2004. "Ability sorting and the returns to college major," Journal of Econometrics, Elsevier, vol. 121(1-2), pages 343-375.
    35. Philipp Eisenhauer & James J. Heckman & Stefano Mosso, 2015. "Estimation Of Dynamic Discrete Choice Models By Maximum Likelihood And The Simulated Method Of Moments," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 56, pages 331-357, May.
    36. Pamela Giustinelli, 2016. "Group Decision Making With Uncertain Outcomes: Unpacking Child–Parent Choice Of The High School Track," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 57(2), pages 573-602, May.
    37. Pamela Giustinelli, 2016. "Group Decision Making With Uncertain Outcomes: Unpacking Child–Parent Choice Of The High School Track," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 57, pages 573-602, May.
    38. Matthew Wiswall & Basit Zafar, 2015. "Determinants of College Major Choice: Identification using an Information Experiment," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 82(2), pages 791-824.
    39. Orazio Attanasio & Teodora Boneva & Christopher Rauh, 2022. "Parental Beliefs about Returns to Different Types of Investments in School Children," Journal of Human Resources, University of Wisconsin Press, vol. 57(6), pages 1789-1825.
    40. Train,Kenneth E., 2009. "Discrete Choice Methods with Simulation," Cambridge Books, Cambridge University Press, number 9780521747387, September.
    41. Attanasio, Orazio P. & Kaufmann, Katja M., 2014. "Education choices and returns to schooling: Mothers' and youths' subjective expectations and their role by gender," Journal of Development Economics, Elsevier, vol. 109(C), pages 203-216.
    42. Keane, Michael P & Wolpin, Kenneth I, 1997. "The Career Decisions of Young Men," Journal of Political Economy, University of Chicago Press, vol. 105(3), pages 473-522, June.
    43. Adeline Delavande & Jinkook Lee & Seetha Menon, 2017. "Eliciting Survival Expectations of the Elderly in Low-Income Countries: Evidence From India," Demography, Springer;Population Association of America (PAA), vol. 54(2), pages 673-699, April.
    44. Cunha, Flavio & Heckman, James J. & Lochner, Lance, 2006. "Interpreting the Evidence on Life Cycle Skill Formation," Handbook of the Economics of Education, in: Erik Hanushek & F. Welch (ed.), Handbook of the Economics of Education, edition 1, volume 1, chapter 12, pages 697-812, Elsevier.
    45. Orazio P. Attanasio, 2015. "The Determinants Of Human Capital Formation During The Early Years Of Life: Theory, Measurement, And Policies," Journal of the European Economic Association, European Economic Association, vol. 13(6), pages 949-997, December.
    46. Ralph Stinebrickner & Todd R. Stinebrickner, 2014. "A Major in Science? Initial Beliefs and Final Outcomes for College Major and Dropout," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 81(1), pages 426-472.
    47. Adeline Delavande & Hans-Peter Kohler, 2016. "HIV/AIDS-related Expectations and Risky Sexual Behaviour in Malawi," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 83(1), pages 118-164.
    48. Jonathan de Quidt & Johannes Haushofer, 2016. "Depression for Economists," NBER Working Papers 22973, National Bureau of Economic Research, Inc.
    49. Baranov, Victoria & Bhalotra, Sonia R. & Biroli, Pietro & Maselko, Joanna, 2017. "Maternal Depression, Women's Empowerment, and Parental Investment: Evidence from a Large Randomized Control Trial," IZA Discussion Papers 11187, Institute of Labor Economics (IZA).
    50. Patrick Bateson & David Barker & Timothy Clutton-Brock & Debal Deb & Bruno D'Udine & Robert A. Foley & Peter Gluckman & Keith Godfrey & Tom Kirkwood & Marta Mirazón Lahr & John McNamara & Neil B. Metc, 2004. "Developmental plasticity and human health," Nature, Nature, vol. 430(6998), pages 419-421, July.
    51. Becker, Gary S & Tomes, Nigel, 1979. "An Equilibrium Theory of the Distribution of Income and Intergenerational Mobility," Journal of Political Economy, University of Chicago Press, vol. 87(6), pages 1153-1189, December.
    52. Flávio Cunha & Irma Elo & Jennifer Culhane, 2013. "Eliciting Maternal Expectations about the Technology of Cognitive Skill Formation," NBER Working Papers 19144, National Bureau of Economic Research, Inc.
    53. Adeline Delavande & Susann Rohwedder, 2011. "Individuals' uncertainty about future social security benefits and portfolio choice," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 26(3), pages 498-519, April.
    54. Abi Adams & Alison Andrew, 2019. "Preferences and beliefs in the marriage market for young brides," IFS Working Papers W19/05, Institute for Fiscal Studies.
    55. Adeline Delavande & Basit Zafar, 2019. "University Choice: The Role of Expected Earnings, Nonpecuniary Outcomes, and Financial Constraints," Journal of Political Economy, University of Chicago Press, vol. 127(5), pages 2343-2393.
    56. Bhalotra, Sonia R. & Venkataramani, Atheendar, 2013. "Cognitive Development and Infectious Disease: Gender Differences in Investments and Outcomes," IZA Discussion Papers 7833, Institute for the Study of Labor (IZA).
    57. Victoria Baranov & Sonia Bhalotra & Pietro Biroli & Joanna Maselko, 2017. "Maternal Depression, Women’s Empowerment, and Parental Investment: Evidence from a Large Randomized Control Trial," CHILD Working Papers Series 60 JEL Classification: I1, Centre for Household, Income, Labour and Demographic Economics (CHILD) - CCA.
    58. Orazio Attanasio & Flávio Cunha & Pamela Jervis, 2019. "Subjective Parental Beliefs: Their Measurement and Role," NBER Working Papers 26516, National Bureau of Economic Research, Inc.
    59. Rebecca Dizon-Ross, 2019. "Parents' Beliefs about Their Children's Academic Ability: Implications for Educational Investments," American Economic Review, American Economic Association, vol. 109(8), pages 2728-2765, August.
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    Cited by:

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    2. Francesco Capozza, 2024. "Beliefs about the Gender Gap in Salary Negotiations," CESifo Working Paper Series 11228, CESifo.
    3. Michele Giannola, 2024. "Parental Investments and Intra-household Inequality in Child Human Capital: Evidence from a Survey Experiment," The Economic Journal, Royal Economic Society, vol. 134(658), pages 671-727.
    4. Gabriella Conti & Michele Giannola & Alessandro Toppeta, 2024. "Parental beliefs, perceived health risks, and time investment in children," IFS Working Papers W24/15, Institute for Fiscal Studies.
    5. Kiessling, Lukas, 2021. "How do parents perceive the returns to parenting styles and neighborhoods?," European Economic Review, Elsevier, vol. 139(C).
    6. Greta Morando & Sonkurt Sen & Almudena Sevilla, 2024. "Maternal Beliefs and Long-Term Child Skill Development," CRC TR 224 Discussion Paper Series crctr224_2024_498, University of Bonn and University of Mannheim, Germany.
    7. Flavio Cunha & Marsha Gerdes & Qinyou Hu & Snejana Nihtianova, 2023. "Language Environment and Maternal Expectations: An Evaluation of the LENA Start Program," NBER Working Papers 30837, National Bureau of Economic Research, Inc.
    8. Cunha, Flávio & Elo, Irma & Culhane, Jennifer, 2022. "Maternal subjective expectations about the technology of skill formation predict investments in children one year later," Journal of Econometrics, Elsevier, vol. 231(1), pages 3-32.
    9. Michael Cuna & Lenka Fiala & Min Sok Lee & John A. List & Sutanuka Roy, 2025. "The Role of Risk and Ambiguity Preferences on Early-Childhood Investment: Evidence from Rural India," NBER Working Papers 33610, National Bureau of Economic Research, Inc.
    10. Gabriella Conti & Pamela Giustinelli, 2025. "For Better or Worse? Subjective Expectations and Cost‐Benefit Trade‐Offs in Health Behavior: An Application to Lockdown Compliance in the United Kingdom," Health Economics, John Wiley & Sons, Ltd., vol. 34(5), pages 992-1012, May.
    11. Flavio Cunha & Irma Elo & Jennifer Culhane, 2021. "Maternal Subjective Expectations about the Technology of Skill Formation Predict Investments in Children One Year Later," Working Papers 2021-018, Human Capital and Economic Opportunity Working Group.
    12. John List & Julie Pernaudet & Dana Suskind, 2021. "It All Starts with Beliefs: Addressing the Roots of Educational Inequities by Changing Parental Beliefs," Framed Field Experiments 00740, The Field Experiments Website.
    13. Siddique, Abu & Islam, Asad & Mozumder, Tanvir Ahmed & Rahman, Tabassum & Shatil, Tanvir, 2022. "Forced Displacement, Mental Health, and Child Development: Evidence from the Rohingya Refugees," SocArXiv b4fc7, Center for Open Science.
    14. Wang, Haining & Cheng, Zhiming & Smyth, Russell, 2022. "Parental misbeliefs and household investment in children's education," Economics of Education Review, Elsevier, vol. 89(C).
    15. Gabriella Conti & Pamela Giustinelli, 2023. "For better or worse? Subjective expectations and cost-benefit trade-offs in health behavior," IFS Working Papers W23/19, Institute for Fiscal Studies.

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    More about this item

    Keywords

    subjective expectations; maternal investment; early life; child development; beliefs; maternal depression; psychic costs; effort costs;
    All these keywords.

    JEL classification:

    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • I15 - Health, Education, and Welfare - - Health - - - Health and Economic Development
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity

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