IZA Publications
IZA Discussion Paper No. 11590
published in: Journal of the European Economic Association, 2023, 21 (5), 2172–2208
IZA Discussion Paper No. 10405
substantially revised version published as 'Twin Birth and Maternal Condition' in: Review of Economics and Statistics, 2019, 101 (5), 853 - 864 / published as 'The Twin Instrument: Fertility and Human Capital Investment' in: Journal of the European Economic Association, 2020, 18 (6), 3090 - 3139
IZA Discussion Paper No. 10072
revised version published in: Journal of Applied Econometrics, 2019, 34, 707-72
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