Early Nutrition and Cognition in Peru: A Within-Sibling Investigation
Ingo Outes-Leon (),
Catherine Porter (),
Alan Sanchez () and
No 2011-017, Working Papers from Banco Central de Reserva del Perú
An extensive literature documents linkages between early nutritional deficiencies and reduced cognitive ability, educational attainment and, ultimately, lower labor market performance. Few of these studies, however, have shown these correlations to be genuinely causal. We reexamine the nutrition and cognition link, applying instrumental variable methods to a sibling-difference specification for a sample of Peruvian pre-school children. We use household shocks and food price changes as instruments. As such our analysis also quantifies the nutritional and cognitive costs of the 2006-08 global food price crisis. We find that there are significant and negative cognitive effects of early childhood nutritional disinvestments: a decrease in Height-for-Age z-score leads to a reduction in the Peabody Picture Vocabulary Test score of 17-21 percent. The accumulated deficits are sizeable considering that these children are only 3-6 years old and are yet to enroll in formal schooling, with deficits likely to widen in later years.
Keywords: Health; Nutrition; Cognitive Development; Children; Peru (search for similar items in EconPapers)
JEL-codes: I12 I20 J13 (search for similar items in EconPapers)
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Working Paper: Early Nutrition and Cognition in Peru: A Within-Sibling Investigation (2011)
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Persistent link: https://EconPapers.repec.org/RePEc:rbp:wpaper:2011-017
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