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When It Rains It Pours: The Long-Run Economic Impacts of Salt Iodization in the United States

Author

Listed:
  • Achyuta Adhvaryu

    (University of Michigan and NBER)

  • Steven Bednar

    (Elon University)

  • Teresa Molina

    (University of Hawaii at Manoa)

  • Quynh Nguyen

    (World Bank)

  • Anant Nyshadham

    (Boston College and NBER)

Abstract

In 1924, the Morton Salt Company began nationwide distribution of iodine-fortified salt. Access to iodine, a key determinant of cognitive ability, rose sharply. We compare outcomes for cohorts exposed in utero with those of slightly older, unexposed cohorts, across states with high versus low baseline iodine deficiency. Income increased by 11%, labor force participation rose 0.68 percentage points, and full-time work went up 0.9 percentage points due to increased iodine availability. These impacts were largely driven by changes in the economic outcomes of young women. In later adulthood, both men and women had higher family incomes due to iodization.

Suggested Citation

  • Achyuta Adhvaryu & Steven Bednar & Teresa Molina & Quynh Nguyen & Anant Nyshadham, 2020. "When It Rains It Pours: The Long-Run Economic Impacts of Salt Iodization in the United States," The Review of Economics and Statistics, MIT Press, vol. 102(2), pages 395-407, May.
    • Handle: RePEc:tpr:restat:v:102:y:2020:i:2:p:395-407
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    1. Claudia Goldin & Claudia Olivetti, 2013. "Shocking Labor Supply: A Reassessment of the Role of World War II on Women's Labor Supply," American Economic Review, American Economic Association, vol. 103(3), pages 257-262, May.
    2. James Feyrer & Dimitra Politi & David N. Weil, 2017. "The Cognitive Effects of Micronutrient Deficiency: Evidence from Salt Iodization in the United States," Journal of the European Economic Association, European Economic Association, vol. 15(2), pages 355-387.
    3. Douglas Almond & Joseph J. Doyle & Amanda E. Kowalski & Heidi Williams, 2010. "Estimating Marginal Returns to Medical Care: Evidence from At-risk Newborns," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 125(2), pages 591-634.
    4. Sharon Maccini & Dean Yang, 2009. "Under the Weather: Health, Schooling, and Economic Consequences of Early-Life Rainfall," American Economic Review, American Economic Association, vol. 99(3), pages 1006-1026, June.
    5. Clay, Karen & Schmick, Ethan & Troesken, Werner, 2019. "The Rise and Fall of Pellagra in the American South," The Journal of Economic History, Cambridge University Press, vol. 79(1), pages 32-62, March.
    6. Richard Hornbeck, 2012. "The Enduring Impact of the American Dust Bowl: Short- and Long-Run Adjustments to Environmental Catastrophe," American Economic Review, American Economic Association, vol. 102(4), pages 1477-1507, June.
    7. Erica Field & Omar Robles & Maximo Torero, 2009. "Iodine Deficiency and Schooling Attainment in Tanzania," American Economic Journal: Applied Economics, American Economic Association, vol. 1(4), pages 140-169, October.
    8. Claudia Goldin & Lawrence F. Katz, 2002. "The Power of the Pill: Oral Contraceptives and Women's Career and Marriage Decisions," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 730-770, August.
    9. Janet Currie & Tom Vogl, 2013. "Early-Life Health and Adult Circumstance in Developing Countries," Annual Review of Economics, Annual Reviews, vol. 5(1), pages 1-36, May.
    10. 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.
    11. Lleras-Muney, Adriana, 2002. "Were Compulsory Attendance and Child Labor Laws Effective? An Analysis from 1915 to 1939," Journal of Law and Economics, University of Chicago Press, vol. 45(2), pages 401-435, October.
    12. Politi, Dimitra, 2010. "The Impact of Iodine Deficiency Eradication on Schooling: Evidence from the Introduction of Iodized Salt in Switzerland," SIRE Discussion Papers 2010-02, Scottish Institute for Research in Economics (SIRE).
    13. Sanders, Nicholas J. & Stoecker, Charles, 2015. "Where have all the young men gone? Using sex ratios to measure fetal death rates," Journal of Health Economics, Elsevier, vol. 41(C), pages 30-45.
    14. Politi, Dimitra, 2010. "The effects of the generalized use of iodized salt on occupational patterns in Switzerland," SIRE Discussion Papers 2010-95, Scottish Institute for Research in Economics (SIRE).
    15. Douglas Almond & Janet Currie, 2011. "Killing Me Softly: The Fetal Origins Hypothesis," Journal of Economic Perspectives, American Economic Association, vol. 25(3), pages 153-172, Summer.
    16. Markel, H., 1987. "'When it rains it pours': Endemic goiter, iodized salt, and David Murray Cowie, MD," American Journal of Public Health, American Public Health Association, vol. 77(2), pages 219-229.
    17. Teresa Molina, 0. "Pollution, Ability, and Gender-Specific Investment Responses to Shocks," Journal of the European Economic Association, European Economic Association, vol. 19(1), pages 580-619.
    18. Card, David, 2001. "Estimating the Return to Schooling: Progress on Some Persistent Econometric Problems," Econometrica, Econometric Society, vol. 69(5), pages 1127-1160, September.
    19. Daron Acemoglu & David H. Autor & David Lyle, 2004. "Women, War, and Wages: The Effect of Female Labor Supply on the Wage Structure at Midcentury," Journal of Political Economy, University of Chicago Press, vol. 112(3), pages 497-551, June.
    20. Hoyt Bleakley, 2007. "Disease and Development: Evidence from Hookworm Eradication in the American South," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(1), pages 73-117.
    21. Gregory T. Niemesh, 2015. "Ironing Out Deficiencies: Evidence from the United States on the Economic Effects of Iron Deficiency," Journal of Human Resources, University of Wisconsin Press, vol. 50(4), pages 910-958.
    22. Hoyt Bleakley, 2010. "Malaria Eradication in the Americas: A Retrospective Analysis of Childhood Exposure," American Economic Journal: Applied Economics, American Economic Association, vol. 2(2), pages 1-45, April.
    23. Goldin, Claudia D, 1991. "The Role of World War II in the Rise of Women's Employment," American Economic Review, American Economic Association, vol. 81(4), pages 741-756, September.
    24. Hilary Hoynes & Diane Whitmore Schanzenbach & Douglas Almond, 2016. "Long-Run Impacts of Childhood Access to the Safety Net," American Economic Review, American Economic Association, vol. 106(4), pages 903-934, April.
    25. Teresa Molina, 2019. "Pollution, Ability, and Gender-Specific Responses to Shocks," CINCH Working Paper Series 1905, Universitaet Duisburg-Essen, Competent in Competition and Health.
    26. Lembke B., 1918. "√ a. p," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 111(1), pages 709-712, February.
    27. Martha J. Bailey, 2006. "More Power to the Pill: The Impact of Contraceptive Freedom on Women's Life Cycle Labor Supply," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 121(1), pages 289-320.
    28. Goldin, Claudia D., 1991. "The Role of World War II in the Rise of Women's Employment," Scholarly Articles 30703972, Harvard University Department of Economics.
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    Cited by:

    1. 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.
    2. Wang, Haining & Cheng, Zhiming & Zhe Wang, Ben & Chen, Yuanyuan, 2021. "Childhood left-behind experience and labour market outcomes in China," Journal of Business Research, Elsevier, vol. 132(C), pages 196-207.
    3. Benjamin Ly Serena, 2022. "Cognitive consequences of iodine deficiency in adolescence: evidence from salt iodization in Denmark," Scandinavian Journal of Economics, Wiley Blackwell, vol. 124(3), pages 869-902, July.
    4. Deng, Zichen & Lindeboom, Maarten, 2019. "A Bit of Salt, a Trace of Life: Gender Norms and the Impact of a Salt Iodization Program on Human Capital Formation of School Aged Children," IZA Discussion Papers 12629, Institute of Labor Economics (IZA).
    5. Niklas Bengtsson & Fredrik Sävje & Stefan Swartling Peterson, 2020. "Fetal Iodine Deficiency and Schooling: A Replication of Field, Robles, and Torero (2009)," Scandinavian Journal of Economics, Wiley Blackwell, vol. 122(2), pages 582-621, April.
    6. Zichen Deng & Maarten Lindeboom, 2021. "A Bit of Salt, A Trace of Life: Gender Norms and The Impact of a Salt Iodization Program on Human Capital Formation of School Aged Children," Papers 2021-01, Centre for Health Economics, Monash University.
    7. Lazuka, Volha, 2019. "It’s a long walk: Lasting effects of maternity ward openings on labour market performance," Lund Papers in Economic History 187, Lund University, Department of Economic History.
    8. Krzysztof Karbownik & Anthony Wray, 2019. "Educational, Labor-market and Intergenerational Consequences of Poor Childhood Health," NBER Working Papers 26368, National Bureau of Economic Research, Inc.
    9. Araújo, Daniel & Carrillo, Bladimir & Sampaio, Breno, 2021. "The Long-Run Economic Consequences of Iodine Supplementation," Journal of Health Economics, Elsevier, vol. 79(C).
    10. Tafesse, W.;, 2018. "The effect of mandatory iodine fortification on cognitive test scores in rural India," Health, Econometrics and Data Group (HEDG) Working Papers 18/10, HEDG, c/o Department of Economics, University of York.
    11. Zichen Deng & Maarten Lindeboom, 2020. "A Bit of Salt a Trace of Life - Gender Norms and The Impact of a Salt Iodization Program on Human Capital Formation of School Aged Children," Tinbergen Institute Discussion Papers 20-067/V, Tinbergen Institute.
    12. Mochamad Pasha & Marc Rockmore & Chih Ming Tan & Dhanushka Thamarapani, 2023. "Early Life Exposure to Above Average Rainfall and Adult Mental Health," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 85(4), pages 692-717, August.
    13. Deng, Zichen & Lindeboom, Maarten, 2022. "A bit of salt, a trace of life: Gender norms and the impact of a salt iodization program on human capital formation of school aged children," Journal of Health Economics, Elsevier, vol. 83(C).
    14. Tafesse, Wiktoria, 2022. "The effect of Universal Salt Iodization on cognitive test scores in rural India," World Development, Elsevier, vol. 152(C).
    15. Karen Clay & Ethan J. Schmick, 2020. "The Impact of an Environmental Shock on Black-White Inequality: Evidence from the Boll Weevil," NBER Working Papers 27101, National Bureau of Economic Research, Inc.
    16. Janet Currie, 2020. "Child health as human capital," Health Economics, John Wiley & Sons, Ltd., vol. 29(4), pages 452-463, April.

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    More about this item

    JEL classification:

    • I15 - Health, Education, and Welfare - - Health - - - Health and Economic Development
    • I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • N32 - Economic History - - Labor and Consumers, Demography, Education, Health, Welfare, Income, Wealth, Religion, and Philanthropy - - - U.S.; Canada: 1913-

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