4 IZA Discussion Papers
IZA Discussion Paper No. 11661
published in: Journal of the European Economic Association, 2023, 21 (1), 48–92
IZA Discussion Paper No. 5007
published in: Journal of Public Economic Theory, 2016, 18 (3), 451-485
IZA Discussion Paper No. 3389
published as "Entrepreneurial Innovation and Economic Growth" in: Journal of Macroeconomics, 2009, 31 (4), 602-613
IZA Discussion Paper No. 2558
published in: Wei-Bin Zhang (ed.), UNESCO Encyclopedia of Life Support Systems (Mathematical Models in Economics), Eolss Publishers, Oxford, UK: 2007