The Gender Weight Gap: Sons, Daughters, and Maternal Weight

Pham-Kanter, Genevieve (2010): The Gender Weight Gap: Sons, Daughters, and Maternal Weight.

Abstract

Although the effect of parents on their children has been the focus of much research on health and families, the influence of children on their parents has not been well studied. In this paper, I examine the effect of the sex composition of children on mothers' physical condition, as proxied by their weight. Using two independent datasets, I find that, many years after the birth of their children, women who have first-born daughters weigh on average 2-6 pounds less than women who have first-born sons. This weight gap emerges around the time that the first-born child is in his or her pre-teen years and is largest during the child's teen years. I find indirect evidence that this gender weight gap is associated with bargaining power shifts and with mothers' appearance-centered behaviors in the presence of daughters, but find no support for the hypothesis that mothers with sons weigh more because sons eat more than daughters and induce mothers to eat more. I also show that it is unlikely that underlying biological factors like a Trivers-Willard effect are significantly biasing these estimates. Although this weight gap may appear small, weight gains of this magnitude may contribute to increased risk of breast cancer. This study is the first to show that children can have real impacts on the physical condition of their parents and points to a novel channel through which policy makers may be able to influence health.

• Item Type: MPRA Paper
• Language: English
• Keywords: gender; daughters; obesity; body weight
• Subjects: I - Health, Education, and Welfare > I1 - Health > I12 - Health Behavior; J - Labor and Demographic Economics > J1 - Demographic Economics > J12 - Marriage ; Marital Dissolution ; Family Structure ; Domestic Abuse; D - Microeconomics > D1 - Household Behavior and Family Economics

References

Almond, Douglas. 2006. "Is the 1918 In�uenza Pandemic Over? Long-term Efects of In Utero In�uenza Exposure in the Post-1940 US Population." Journal of Political Economy, 114:672-712.

Almond, Douglas, and Lena Edlund. 2007. "Trivers-Willard at Birth and One Year: Evidence from US Natality Data 1983-2001." Proceedings of the Royal Society Series B, 274:2491-2496.

Almond, Douglas, Lena Edlund, Hongbin Li, and Junsen Zhang. 2007. "Long-term Effects of the 1959-1961 China Famine: Mainland China and Hong Kong." NBER Working Paper 13384.

Angrist, Joshua D., and William N. Evans. 1998. "Children and their Parents� Labor Supply: Evidence from Exogenous Variation in Family Size." American Economic Review, 88:450-477.

Barker, David J.P. 1997. "Maternal Nutrition, Fetal Nutrition, and Disease in Later Life." Nutrition, 13:807-813.

Ben-Porath, Yoram, and Finis Welch. 1976. "Do Sex Preferences Really Matter?" Quarterly Journal of Economics, 90:285-307.

Bertrand, Marianne, and Diane Whitmore Schanzenbach. 2009. "Time Use and Food Consumption." American Economic Review: Papers and Proceedings, 99:170-176.

Black, Sandra E., Paul J. Devereux, and Kjell Salvanes. 2007. "From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes." Quarterly Journal of Economics, 122:409-439.

Blood, Robert O., Jr., and Donald M. Wolfe. 1960. Husbands and Wives: The Dynamics of Family Living. Glencoe, IL: Free Press.

Cameron, Elissa Z., and Fredrik Dalerum. 2009. "A Trivers-Willard E¤ect in Contemporary Humans: Male-Biased Sex Ratios Among Billionaires." PLoS ONE, 4:e4195.

Case, Anne, Angela Fertig, and Christina Paxson. 2005. "The Lasting Impact of Childhood Health and Circumstance." Journal of Health Economics 24:365-389.

Cawley, John. 2004. "The Impact of Obesity on Wages." Journal of Human Resources, 39:451-474.

Christakis, Nicholas A., and James H. Fowler. 2007. "The Spread of Obesity in a Large Social Network Over 32 Years." New England Journal of Medicine, 357:370-379.

Conley, Dalton, and Emily Rausch. 2010. "The E¤ect of Daughters on Partisanship." NBER Working Paper No. 15873.

Currie, Janet. 2000. "Child Health in Developed Countries." In: Handbook of Health Economics. Anthony J. Culyer and Joseph P. Newhouse, eds. New York: Elsevier.

Dahl, Gordon B., and Enrico Moretti. 2008. "The Demand for Sons." Review of Economic Studies, 75:1085-1120.

Dawes, M.G., and J.G. Grudzinskas. 1991. "Patterns of Maternal Weight Gain in Pregnancy." British Journal of Obstetrics and Gynaecology, 98:195-201.

Diez-Roux, Ana V. 2001. "Investigating Neighborhood and Area E¤ects on Health." American Journal of Public Health, 9:1783-1789.

Downey, Douglas B., Pamela B. Jackson, and Brian Powell. 1994. "Sons Versus Daughters: Sex Composition of Children and Maternal Views on Socialization." Sociological Quarterly, 35:33-50.

Dunn, Richard A. 2008. "Obesity and the Availability of Fast-Food: An Instrumental Variables Approach." Unpublished.

Eliassen, A. Heather, Graham A. Coldtiz, Bernard Rosner, Walter C. Willett, and Susan E. Hankinson. 2006. "Adult Weight Change and Risk of Postmenopausal Breast Cancer." Journal of the American Medical Association, 296:193-201.

Harris, Kathleen Mullan, and S. Philip Morgan. 1991. "Fathers, Sons, and Daughters: Differential Parental Involvement in Parenting." Journal of Marriage and the Family, 53:531-544.

Heer, David. 1963. The Measurement and Bases of Family Power: An Overview. Marriage and Family Living, 25:133-139.

Jacklin, Carol Nagy, Janet Ann DiPietro, and Eleanor E. Maccoby. 1984. "Sex-Typing Behavior and Sex-Typing Pressure in Child/Parent Interaction." Archives of Sexual Behavior, 13:413-425.

Jackson, Linda A., Linda A. Sullivan, and Ronald Rostker. 1988. "Gender, Gender Role, and Body Image." Sex Roles, 19:429-443.

James, William H. 1987. "The Human Sex Ratio. Part 1: A Review of the Literature." Human Biology, 59:721-752.

Juni, Samuel, and Donald W. Grimm. 1993. "Sex-Role Similarities Between Adults and Their Parents." Contemporary Family Therapy, 15:247-251.

Katzev, Aphra, Rebecca L. Warner, and Alan C. Acock. 1994. "Girls or Boys? Relationship of Child Gender to Marital Instability." Journal of Marriage and the Family, 56:89- 100.

Larsson, Susanna C., and Alicja Wolk. 2007. "Obesity and the Risk of non-Hodgkin�s Lymphoma: A Meta-Analysis." International Journal of Cancer, 121:1564-1570.

Lundberg, Shelly. 2005a. "The Division of Labor by New Parents: Does Child Gender Matter?" IZA Discussion Paper No. 1787.

Lundberg, Shelly. 2005b. "Sons, Daughters, and Parental Behaviour." 2005. Oxford Review of Economic Policy, 21:340-356.

Lundberg, Shelly, and Robert A. Pollak. 1993. "Separate Spheres Bargaining and the Marriage Market." Journal of Political Economy, 101:988-1010.

Lundberg, Shelly, and Elaina Rose. 2002. "The Effects of Sons and Daughters on Men'�s Labor Supply and Wages." Review of Economics and Statistics, 84:251-268.

Luo, Zhehui, Ren Mu, and Xiaobo Zhang. 2006. "Famine and Overweight in China." Review of Agricultural Economics, 28:296-304.

Manser, Marilyn, and Murray Brown. 1980. "Marriage and Household Decision-Making: A Bargaining Analysis." International Economic Review 21:31-44.

McElroy, Marjorie B., and Mary Jane Horney. 1981. "Nash-Bargained Household Decisions: Toward a Generalization of the Theory of Demand." International Economic Review, 22:333-339.

McQuillan, Geraldine, Patrick J. Coleman, Deanna Kruszon-Moran, Linda A.Moyer, Stephen B. Lambert, and Harold S. Margolis. 1999. "Prevalence of Hepatitis B Virus Infec- tion in the United States: The National Health and Nutrition Examination Surveys, 1976 Through 1994." American Journal of Public Health, 89:14-18.

Morgan, S. Philip, Diane N. Lye, and Gretchen Condran. 1988. "Sons, Daughters, and the Risk of Marital Disruption." American Journal of Sociology, 94:110-129.

Oster, Emily. 2005. "Hepatitis B and the Case of the Missing Women." Journal of Political Economy, 113:1163-1216.

Oswald, Andrew J., and Nattavudh Powdthavee. 2010. "Daughters and Left-Wing Voting." Review of Economics and Statistics 92:213-227.

Pickett, Kate E., and Michelle Pearl. 2001. "Multilevel Analyses of Neighbourhood Socioeconomic Context and Health Outcomes: A Critical Review." Journal of Epidemiology and Community Health, 55:111-122.

Powdthavee, Nattavudh, Stephen Wu, and Andrew Oswald. 2009. "The Bene�cial Effect of Daughters on Health Risk Behaviors." Unpublished manuscript.

Raley, Sara, and Suzanne Bianchi. 2006. "Sons, Daughters, and Family Processes: Does Gender of Children Matter?" Annual Review of Sociology, 32:401-421.

Redman, Christopher W., and Ian L. Sargent. 2005. "Latest Advances in Understanding Preeclampsia." Science, 308:1592-1594.

Teachman, Jay D., and Paul T. Schollaert. 1989. "Gender of Children and Birth Timing." Demography, 26:411-423.

Trivers, Robert L., and Dan E. Willard. 1973. "Natural Selection of Parental Ability to Vary the Sex Ratio of O¤spring." Science, 179:90-92.

Warner, Rebecca L. 1991. "Does the Sex of Your Children Matter? Support for Feminism Among Women and Men in the United States and Canada." Journal of Marriage the Family, 53:1051-1056.

Washington, Ebonya L. 2008. "Female Socialization: How Daughters A¤ect Their Legislator Fathers." American Economic Review, 98:311-332.

Yen, S.-L., T.-Y. Chiu, Y.-C. Lin, Y.-C. Lee, L.-T. Lee, and K.-C. Huang. 2008. "Obesity and Hepatitis B Infection are Associated with Increased Risk of Metabolic Syndrome in University Freshmen." International Journal of Obesity, 32:474-480.