Koskela, Erkki (contributor); Poutvaara, Panu (contributor) - 2008
doctoral program. IZA engages in (i)
original and internationally competitive research in all fields of labor economics, (ii … author:
Erkki Koskela
Department of Economics
University of Helsinki
P.O. Box 17 (Arkadiankatu 7)
00014 Helsinki …