Max Planck Institute for Social Law and Social Policy / PSBH Antwerp Univ. / Cohen Institute / Munich Center for the Economics of Aging / EU Commission / LINK SC&C TNS Infratest SFI-Survey GfK TNS Demoscopia TNS Demoscopia GFK-ISL Cohen Institute / European Union / Liège Univ. / DOXA S.p.A. TNS NIPO Intervjubolaget IMRI CJMMK Cohen Institute / Antwerp Univ. / Tel Aviv Univ. / /