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The Twin Instrument: Fertility and Human Capital Investment

Bhalotra, Sonia and Clarke, Damian (2019) 'The Twin Instrument: Fertility and Human Capital Investment.' Journal of the European Economic Association. ISSN 1542-4766

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Abstract

Twin births are often used as an instrument to address selection of women into fertility. However recent work shows selection of women into twin birth such that, while OLS estimates tend to be downward biased, twin-IV estimates will tend to be upward biased. This is pertinent given the emerging consensus that fertility has limited impacts on women’s labour supply, or on investments in children. Using data for developing countries and the United States to estimate the trade-off between fertility and children’s human capital, we demonstrate the nature and size of the bias in the twin-IV estimator and estimate bounds on the true parameter.

Item Type: Article
Uncontrolled Keywords: Twins; fertility; maternal health; quantity–quality trade-off; parental investment; bounds; IV
Divisions: Faculty of Social Sciences > Economics, Department of
Depositing User: Elements
Date Deposited: 18 Sep 2019 13:42
Last Modified: 31 Mar 2020 10:15
URI: http://repository.essex.ac.uk/id/eprint/25383

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