5 IZA Discussion Papers
IZA Discussion Paper No. 6786
revised version published in: Labour Economics, 2013, 24, 244-252.
IZA Discussion Paper No. 3883
published in: International Organization, 2010, 64 (1), 133-144
IZA Discussion Paper No. 3412
published online as 'Tobacco and Alcohol: Complements or Substitutes? A Structural Model Approach to Insufficient Price Variation in Individual-Level Data' in: Empirical Economics, 2013, 45(1), 539-566
IZA Discussion Paper No. 2906
IZA Discussion Paper No. 2170
published in: T. Sandler and K. Hardley (eds.), Handbook of Defense Economics Vol. 2, Elsevier 2007