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Response of Parental Investments to Child’s Health Endowment at Birth

Health Econometrics

ISBN: 978-1-78714-542-9, eISBN: 978-1-78714-541-2

ISSN: 0573-8555

Publication date: 30 May 2018

Abstract

We estimate the parental investment response to the child endowment at birth, by analysing the effect of child birth weight on the hours worked by the mother two years after birth. Mother’s working hours soon after child birth are a measure of investments in their children as a decrease (increase) in hours raises (lowers) her time investment in the child. The child birth endowment is endogenously determined in part by unobserved traits of parents, such as investments during pregnancy. We adopt an instrumental variables estimation. Our instrumental variables are measures of the father’s health endowment at birth, which drive child birth weight through genetic transmission but does not affect directly the mother’s postnatal investments, conditional on maternal and paternal human capital and prenatal investments. We find an inverted U-shape relationship between mothers worked hours and birth weight, suggesting that both low and extremely high child birth weight are associated with child health issues for which mothers compensate by reducing their labour supply. The mother’s compensating response to child birth weight seems slightly attenuated for second and later born children. Our study contributes to the literature on the response of parental investments to child’s health at birth by proposing new and more credible instrumental variables for the child health endowment at birth and allowing for a heterogeneous response of the mother’s investment for first born and later born children.

Keywords

Acknowledgements

Acknowledgements

We thank for useful comments two anonymous reviewers and participants to several presentations, in particular Fabrizio Iacone, Luigi Siciliani and Peter Simmons. The research is partially supported by the Economic and Social Research Council through their grants to the Research Centre on Micro-Social Change in ISER (ES/L009153/1). Salvanes thanks the Research Council of Norway for financial support.

Citation

Nicoletti, C., Salvanes, K.G. and Tominey, E. (2018), "Response of Parental Investments to Child’s Health Endowment at Birth", Health Econometrics (Contributions to Economic Analysis, Vol. 294), Emerald Publishing Limited, Bingley, pp. 175-199. https://doi.org/10.1108/S0573-855520180000294009

Publisher

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Emerald Publishing Limited

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