Political scientist studying electoral behaviour, public opinion and electoral systems
Emeritus Professor at the Department of Political Science, University of Oslo and associate of the Institute for Social Research, Oslo. Leader of the Norwegian National Election Studies 1985-2020.
Magister Artium (MA) in Political Science, University of Oslo 1979. PhD in Political Science, University of Oslo, 1993.
Chair of the Board of The Norwegian Social Science Data Archives (NSD) 2003-2010. Chair of the Board of the Peace Research Institute Oslo (PRIO) 2007-2017. Member of the Electoral Reform Commissions 1997-2001 and 2017-2020.