@article{oai:gunma-u.repo.nii.ac.jp:00001089,
 author = {杉山, 学},
 journal = {群馬大学社会情報学部研究論集},
 month = {Mar},
 note = {application/pdf, Departmental Bulletin Paper, Abstract\nThis study evaluates the relative efficiency of each Japan Railway company and each Japan’s\nmajor private railway company, using various types of DEA (Data Envelopment Analysis). As\nthe second step of this evaluation, this paper evaluates the relative efficiency of each Japan\nRailway company and each Japan’s major private railway company by using the DEA/Window\nAnalysis. In this paper,trends of the relative efficiency of each Japan Railway company became\nclear by comparing with each Japan’s major private railway company.},
 pages = {61--82},
 title = {データ包絡分析法によるJR と大手私鉄の事業活動効率比較　― DEA/ウィンドー分析によるJR 旅客各社の推移―},
 volume = {16},
 year = {2009}
}