2 IZA Discussion Papers
IZA Discussion Paper No. 11864
published in: Journal of Business and Economic Statistics, 2020, 38 (4), 901 - 920
IZA Discussion Paper No. 6650
fundamentally revised version published as 'Competing Risks Copula Models for Unemployment Duration: An Application to a German Hartz Reform' in Journal of Econometric Methods, 2017, 6, 1-20