Publications
IZA Discussion Paper No. 12020
IZA Discussion Paper No. 12019
IZA Discussion Paper No. 12018
IZA Discussion Paper No. 11812
IZA Discussion Paper No. 8337
substantially revised version published in: Labour Economics, 2017, 46, 14-25 [free download until May 11, 2017 here].
IZA Discussion Paper No. 6071
IZA Discussion Paper No. 4451
revised version published as 'Comparing Treatments across Labor Markets: An Assessment of Nonexperimental Multiple-Treatment Strategies' in: Review of Economics and Statistics, 2013, 95(5), 1691-1707
IZA Discussion Paper No. 3857
IZA Discussion Paper No. 2347
shorter version published as "Dealing with Limited Overlap in Estimation of Average Treatment Effects" in: Biometrika, 2009, 96 (1), 187-199