6 IZA Discussion Papers
IZA Discussion Paper No. 4327
IZA Discussion Paper No. 2637
revised version published as 'Business Environment, Exports, Ownership, and Firm Performance' in: Review of Economics and Statistics, 2011, 93 (1), 309 - 337
IZA Discussion Paper No. 2306
IZA Discussion Paper No. 1213
published in: Gil S. Epstein and Ira N. Gang. (eds.): Migration and Culture, Frontiers of Economics and Globalization, Vol. 8, Emerald Publishing, Bingley, 2010, 375-400
IZA Discussion Paper No. 400
published in: Empirical Economics, 2005, 30 (2), 309-329