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The height production function from birth to maturity

Height is the result of a complex process of growth that begins at birth and reaches the end in early adulthood. This paper studies the determinants of height from birth to maturity. A height production function is specified whose structure allows height to be the result of the accumulation of inputs (i.e., nutrition and diseases) over time. The empirical specification allows the causal identification of the age specific effects of both nutrition and diseases on height. Rich longitudinal data on Filipino children followed for more than 20 years are used. Considering the differences in growth patterns between boys and girls, the results show the existence of two critical periods for the formation of height: infancy and pre-puberty. In particular, diseases experienced during infancy, specially in the second year of life, and nutrition during pre-puberty play a major role.