2 IZA Discussion Papers
IZA Discussion Paper No. 6755
published as 'The Early Origins of Birth Order Differences in Children's Outcomes and Parental Behavior' in: Journal of Human Resources, 2018, 53, 123 - 156
IZA Discussion Paper No. 2434
published in: Economics of Education Review, 2010, 29 (3), 319-328, revised version available here