8 IZA Discussion Papers
IZA Discussion Paper No. 13756
IZA Discussion Paper No. 12685
IZA Discussion Paper No. 12490
revised version available from authors.
IZA Discussion Paper No. 11878
published in: Journal of the European Economic Association, 2020, 18 (6), 3090-3139
IZA Discussion Paper No. 11742
Review of Economics and Statistics, 2019, 101(5), 853-864
IZA Discussion Paper No. 10405
very substantially revised and published as 'Twin Birth and Maternal Condition' in: Review of Economics & Statistics, published online November 02, 2018 - and revised and resubmitted as 'The Twin Instrument: Fertility and Human Capital Investment' in: Journal of the European Economic Association
IZA Discussion Paper No. 10082
IZA Discussion Paper No. 4593
published in: Health Economics, 2010, Volume 19 (Supplement 1), 107–125