@techreport{oai:grips.repo.nii.ac.jp:00000956,
 author = {SAHOO, Biresh K. and TONE, Kaoru},
 note = {https://www.grips.ac.jp/list/facultyinfo/tone_kaoru/, This paper attempts to examine the data envelopment analysis (DEA) model of efficiency measurement from an economic perspective. We have discussed here the use of a new DEA model to show how the presence of process indivisibilities arising from task-specific production processes exhibits economies of scope., Research supported by Grant-in-Aid for Scientific Research (C) Japan Society for the Promotion of Science},
 title = {Indivisibilities and Economies of Scope in Data Envelopment Analysis}
}