3 IZA Discussion Papers
IZA Discussion Paper No. 2470
revised version published in: German Economic Review, 2009, 10 (3), 284 - 316
IZA Discussion Paper No. 520
substantially revised version published as 'Empirical Matching Functions: Searchers, Vacancies, and (Un-)biased Elasticities' in: Economica, 2007, 74 (295), 537-560
IZA Discussion Paper No. 335
revised version published as 'Occupational Job Creation: Patterns and Implications' in: Oxford Economic Papers, 2004, 56 (3), 407-436