About Liu Junqing
About Graduate School of Economics, Osaka University, 1-7, Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
About Fukushige Mototsugu
About Graduate School of Economics, Osaka University, 1-7, Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
About Utilities Policy
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About regression analysis
About sewerage
About interaction
About pricing
About water supply
About データ包絡分析
About Efficiency
About Pricing
About Water supply
About Sewerage
About Data envelopment analysis
About Electric power engineering and electric enterprise in general
About 日本
About 給水
About 下水道
About サービス
About 価格