@inproceedings{oai:grips.repo.nii.ac.jp:00001558,
 author = {ASAI, Sumiko},
 month = {Jan},
 note = {This workshop is supported by JSPS KAKENHI Grant Number 22310092 under the title “Theory and Applications of Dynamic DEA with Network Structure.”, This study measured technical efficiency accounting for environmental influence in the Japanese gas market by stochastic frontier analysis (SFA) and data envelopment analysis (DEA). The results showed that from the viewpoint of fitness, the stochastic frontier production function incorporating an external factor was more appropriate than one without it. The study also found that the distribution of efficiency scores calculated by the DEA model incorporating an external factor was more similar to that by the SFA model incorporating the factor, compared to that by the DEA model without incorporating it. These findings imply that considering the impact of external conditions on technical efficiency is essential for the Japanese gas market., Workshop 2013 on Dynamic and Network DEA (January 29-30, 2013)},
 pages = {57--64},
 publisher = {出版社不明},
 title = {Technical Efficiency Accounting for Environmental Influence in the Japanese Gas Market},
 year = {2013}
}