Institution: | aLabour Institute for Economic Research, Pitkänsillanranta 3A, 6. krs., FI-00530 Helsinki, Finland;bThe Social Insurance Institution of Finland, Nordenskiöldinkatu 12, P.O. Box 450, FI-00101 Helsinki, Finland;cGovernment Institute for Economic Research (VATT), IFAU and IZA, Arkadiankatu 7, P.O. Box 1279, FI-00101 Helsinki, Finland |