3 IZA Discussion Papers
IZA Discussion Paper No. 15343
IZA Discussion Paper No. 10786
revised version published as 'Skills mismatch: Concepts, Measurement and Policy Approaches' in: Journal of Economic Surveys, 2018, 32 (4), 985-1085
IZA Discussion Paper No. 9278
published in: Industrial Relations Journal, 2016, 47 (3), 253-278