References
References
- Färe , R and Grosskopf , S . 1985 . A nonparametric cost approach to scale efficiency . Scandinavian Journal of Economics , 87 ( 4 ) : 594 – 604 .
- Färe , R and Zelenyuk , V . 2002 . Input aggregation and technical efficiency . Applied Economics Letters , 9 : 635 – 6 .
- Farrell MJ 1957 The measurement of productive efficiency Journal of Royal Statistical Society Series A, General 120 part 3 253 81
- Tauer , L . 2001 . Input aggregation and computed technical efficiency . Applied Economics Letters , 8 : 295 – 7 .