@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042191,
 author = {Matsushima, Hitoshi and Shima, Toshihiko},
 month = {Mar},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Investment and Ultimatum Games : Experiments},
 year = {2011}
}