@techreport{e21feb5b68a54b399cf2f5d7f5cf0c22,
title = "Early Nutrition and Cognition in Peru: A Within‐Sibling Investigation",
abstract = "This paper examines the causal link between early childhood nutrition and cognition, applying instrumental variables to sibling-differences for a sample of pre-school 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.",
author = "Ingo Outes-Leon and Catherine Porter and Alan S{\'a}nchez",
year = "2011",
month = aug,
language = "English",
series = "IDB Working Paper Series",
publisher = "Inter-American Development Bank",
number = "241",
address = "United States",
type = "WorkingPaper",
institution = "Inter-American Development Bank",
}