@article{oai:ipss.repo.nii.ac.jp:00000155,
 author = {酒井, 正 and SAKAI, Tadashi},
 issue = {2011-J02},
 journal = {IPSS Discussion Paper Series, IPSS Discussion Paper Series},
 month = {Jan},
 pages = {1--16},
 title = {雇用保険の受給者割合はなぜ低下してきたのか},
 year = {2012},
 yomi = {サカイ, タダシ}
}