Professor, Korea University
<Education>: Diplom Soziologie. Uni. Bremen 2000
: Ph.D. Uni. Bielefeld. 2006
Member, Expert Commission of National Happiness Pension System by Ministry of Welfare and Health, 2013.
Member, Commission of Development of National Pension System by Ministry of Welfare and Health, 2012-2013
Member, Advisory Committee of Improvement by National Pension Service, 2009-2010.
Vice-director, Institute of Social Research
Member, Executive Council of the Korean Social Security Association