@article{oai:ksu.repo.nii.ac.jp:00009800,
 author = {Miyashita, Hiroshi and Miyashita, Hiroshi and Yoneyama, Takau and Yoneyama, Takau},
 journal = {Discussion paper series, Discussion paper series},
 month = {Jan},
 note = {1, KJ00000214477, P},
 pages = {2--35},
 title = {Technical Inefficiency and Economies of Scale in the Japanese Life Insurance Industry},
 volume = {28},
 year = {1999}
}