3 IZA Discussion Papers
IZA Discussion Paper No. 17213
IZA Discussion Paper No. 12271
published in: Journal of Econometrics, 2022, 231 (1), 123-147
IZA Discussion Paper No. 6940
published in: A. F. Constant, K. F. Zimmermann (eds.), International Handbook on the Economics of Migration, Edward Elgar 2013, Cheltenham, UK, and Northampton, USA, Chapter 3, 55-74