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学術論文
A multi-division efficiency evaluation of U.S. electric power companies using a weighted slacks-based measure
Socio-Economic Planning Sciences, 43(3), 201-208
学術論文
Network DEA: A slacks-based measure approach
European Journal of Operational Research, 197(1), 243-252
学会発表・講演
Barriers to Energy Efficiency for Residential Space-heating Appliances in Japan
2nd International Association for Energy Economics (IAEE) International Conference, 21-24 June 2009, San Francisco, USA