Okayama University / Institute of Social / The Institute of Social / University of Tokyo / National Institute of Population / Economic Research Osaka University / Waseda University / Osaka University / / /
IndustryTerm
web survey / marital search process / /
Organization
Japan Society for the Promotion of Science / Graduate School / Statistics Bureau of Japan / Institute of Social / Waseda University / University of Tokyo / Social Security Research / and Okayama University / National Institute of Population and Social Security Research / Statistics Bureau / Osaka University / /