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Labor Market Returns to Early Childhood Stimulation: A 20-year Followup to an Experimental Intervention in Jamaica

  • Gertler, Paul
  • Heckman, James
  • Pinto, Rodrigo
  • Zanolini, Arianna
  • Vermeerch, Christel
  • Walker, Susan
  • Chang, Susan M.
  • Grantham-McGregor, Sally

We find large effects on the earnings of participants from a randomized intervention that gave psychosocial stimulation to stunted Jamaican toddlers living in poverty. The intervention consisted of one-hour weekly visits from community Jamaican health workers over a 2-year period that taught parenting skills and encouraged mothers to interact and play with their children in ways that would develop their children's cognitive and personality skills. We re-interviewed the study participants 20 years after the intervention. Stimulation increased the average earnings of participants by 42 percent. Treatment group earnings caught up to the earnings of a matched non-stunted comparison group. These findings show that psychosocial stimulation early in childhood in disadvantaged settings can have substantial effects on labor market outcomes and reduce later life inequality.

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Paper provided by Institute of Industrial Relations, UC Berkeley in its series Institute for Research on Labor and Employment, Working Paper Series with number qt8sz5p9vd.

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Date of creation: 31 Mar 2013
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Handle: RePEc:cdl:indrel:qt8sz5p9vd
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  2. Susanne Schennach & James Heckman & Flavio Cunha, 2007. "Estimating the Technology of Cognitive and Noncognitive Skill Formation," 2007 Meeting Papers 973, Society for Economic Dynamics.
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  14. Lex Borghans & Angela Lee Duckworth & James J. Heckman & Bas ter Weel, 2008. "The Economics and Psychology of Personality Traits," NBER Working Papers 13810, National Bureau of Economic Research, Inc.
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  16. Hoyt Bleakley, 2007. "Disease and Development: Evidence from Hookworm Eradication in the American South," The Quarterly Journal of Economics, Oxford University Press, vol. 122(1), pages 73-117.
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  18. Heckman, James J. & Moon, Seong Hyeok & Pinto, Rodrigo & Savelyev, Peter A. & Yavitz, Adam, 2010. "The rate of return to the HighScope Perry Preschool Program," Journal of Public Economics, Elsevier, vol. 94(1-2), pages 114-128, February.
  19. John A. Maluccio & John Hoddinott & Jere R. Behrman & Reynaldo Martorell & Agnes R. Quisumbing & Aryeh D. Stein, 2009. "The Impact of Improving Nutrition During Early Childhood on Education among Guatemalan Adults," Economic Journal, Royal Economic Society, vol. 119(537), pages 734-763, 04.
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