Koskela, Erkki (contributor); Ollikainen, Markku (contributor) - 2004 - [Elektronische Ressource]
, University of Helsinki
Discussion papers No. 600.
ISSN 1459-3696
ISBN 952-10-1530-6
April 23, 2004
1 …) Department of Economics, P.O. Box 17 (Arkadiankatu 7), Fin-00014 University
of Helsinki, Finland , E-mail: erkki.koskela@helsinki ….fi
2) Department of Economics and Management, P.O. Box 27, Fin-00014 University
of Helsinki, Finland. E-mail: markku.ollikainen@helsinki …