@misc{10809,
title = {Early Nutrition and Cognition in Peru: A Within-Sibling Investigation},
author = {Outes-Leon, Ingo and Porter, Catherine and Sánchez, Alan},
year = {2011},
doi = {10.18235/0011313},
abstract = {This paper examines the causal link between early childhood nutrition and cognition, applying instrumental variables to sibling-differences for a sample of preschool aged Peruvian children. Child-specific shocks in the form of food price changes and household shocks during the critical developmental period of a child are used as instruments. The analysis shows significant and positive returns to early childhood nutritional investments. An increase in the Height-for-Age z-score of one standard deviation -keeping other factors constant- translates into increases in the Peabody Picture Vocabulary Test (PPVT) score of 17-21 percent of a standard deviation. The period of analysis includes the recent global food price crisis that also affected Peru between 2006 and 2008. This therefore is also a quantification of the nutritional and subsequent cognitive costs of food prices on the sample, which could be magnified in later years.},
url = {https://doi.org/10.18235/0011313}
}