Malmquist–Luenberger Productivity Index for a Two-Stage Structure in the Presence of Undesirable Outputs and Uncertainty

Table 2

Recent advances of environmental factors in MPI- DEA/NDEA.

Authors	DEA model	Environmental factor	Applications scope
Wang and Feng [16]	CCR	Output	Industrial
Zhu and Lin [17]	CCR	Output	Iron and steel industry
Li et al. [18]	SBM	Output/input	Industrial systems
Li et al. [19]	BCC	Output	Forestry
Aghayi et al. [20]	CCR	Output	Banking industry
Shirazi and Mohammadi [21]	CCR	Output	Airline
Toloo and Hanclova [22]	CCR	Output	Countries
An et al. [23]	SBM	Output/input	Trunk streams
Asanimoghadam et al. [24]	ASBM	Output	Industrial airline
Salahi et al. [25]	ASBM	Output	Provinces in China
Shakouri and Salahi [26]	CCR	Output	Oil generation
Zhang et al. [27]	CCR	Output	Industrial system
Chen et al. [28]	SBM	Output/input	Public health center
Arabi et al. [29]	SBM	Output/input	Power plants