322 IZA Discussion Papers
IZA Discussion Paper No. 57
published in: Journal of Human Resources, 2000, 35 (3), 550-569;
see IZA Reprints 54/00
see IZA Reprints 54/00
IZA Discussion Paper No. 50
published in: Jahrbuch für Wirtschaftsgeschichte / Economic History Yearbook, 2000, 1, 225-237