@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042216,
 author = {Nagamachi, Kohei},
 month = {Nov},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Comparative Advantage and Skill Premium of Regions},
 year = {2012}
}