4 IZA Discussion Papers
IZA Discussion Paper No. 9909
published in: Journal of Economics and Social Measurement, 2017, 42 (2), 101-121
IZA Discussion Paper No. 3853
revised version published in: Journal of Applied Econometrics, 2011, 26 (4), 641 - 668
IZA Discussion Paper No. 1706
substantially revised paper appeared as DP No. 3853
IZA Discussion Paper No. 145
see DP 877 for a revised and general decomposition method