Windows of Opportunity in Early Childhood: A Dynamic Model of Multidimensional Development

We are grateful to many colleagues for a number of conversations. In particular, we would like to thank Sarah Cattan, Flavio Cunha, Jim Heckman, Costas Meghir and Emily Nix for useful discussions on measuring child development at different ages. We also received very valuable comments from Lance Lochner and 4 anonymous referees. We used Claude to improve the style of some paragraphs in the text. We would also like to thank AEIOTU’s staff for the support. Attanasio’s research was partially funded by ERC Advanced Grant AdG – 695300. Nores and Bernal’s research underlying this work was supported by the Jacobs Foundation (Grant No. 209-805-1), the UBS Optimus Foundation, the LEGO Foundation, and the Inter-American Development Bank (PO 209-805-1). The views expressed are those of the authors and do not necessarily represent those of the funders. The study obtained ethical approvals from Universidad de Los Andes, Comite de Etica (IRB Approval Number 032-2009) and Rutgers IRB (IRB Approval Number E09-568). The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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