Benchmarking the efficiency of water and sewerage companies: Application of the stochastic non-parametric envelopment of data (stoned) method
作者：
Highlights：
• Cost efficiency is estimated using stochastic non-parametric envelopment of data.
• StoNED method brings together the qualities of both DEA and SFA.
• Environmental variables were integrated in StoNED assessment.
摘要
•Cost efficiency is estimated using stochastic non-parametric envelopment of data.•StoNED method brings together the qualities of both DEA and SFA.•Environmental variables were integrated in StoNED assessment.
论文关键词：Environmental variables,Efficiency,Frontier estimation,Non-parametric analysis,Regulation,Water industry
论文评审过程：Received 2 December 2020, Revised 17 June 2021, Accepted 1 August 2021, Available online 5 August 2021, Version of Record 10 August 2021.
论文官网地址：https://doi.org/10.1016/j.eswa.2021.115711
