Central exit examinations increase performance ... but take the fun out of mathematics
Rev. version, Wuppertal : Bergische Univ. Wuppertal, 2008
Collateral damage
educational attainment and labor market outcomes among German war and post-war cohortsWuppertal : Bergische Univ. Wuppertal, 2012
Economics of cancer drugs
development, approval, benefit, trials, innovation, value, price, and competitionWuppertal, 2023
Educational differences in smoking
selection versus causationWuppertal : Bergische Universität Wuppertal, 21. Dezember 2016

First do no harm, then do not cheat
DRG upcoding in German neonatologyWuppertal : Bergische Univ. Wuppertal, 2014
Health, financial incentives, and early retirement
micro-simulation evidence for GermanyWuppertal : Bergische Univ. Wuppertal, 2014
Intra- and intergenerational perspectives on health and long-term care
the role of educationWuppertal, July 2022
Labor supply choices within families
Wuppertal, April 2024
