Table 5 Optimal (fully efficient) input use estimated by DEA (average values of TE VRS)
From: Technical efficiency and productivity of farms: a periurban case study analysis
| Â | Â | Observed values | Optimal values | TE | Savings |
|---|---|---|---|---|---|
Considering one frontier | |||||
 Overall efficiency (TEo) |  |  |  |  | |
  Land (ha) | 78.59 | 64.80 | 0.80 | − 13.79 | |
  Expe (€’000) | 211.36 | 183.20 | 0.79 | − 28.16 | |
  Work (€’000) | 121.74 | 92.51 | 0.79 | − 29.22 | |
 Livestock | |||||
  Land (ha) | 90.44 | 73.86 | 0.80 | − 16.59 | |
  Expe (€’000) | 346.50 | 308.42 | 0.81 | − 38.08 | |
  Work (€’000) | 137.62 | 113.03 | 0.81 | − 24.58 | |
 Crops | |||||
  Land (ha) | 69.57 | 57.92 | 0.80 | − 11.66 | |
  Expe (€’000) | 108.65 | 88.04 | 0.78 | − 20.62 | |
  Work (€’000) | 109.67 | 76.92 | 0.78 | − 32.75 | |
Considering two frontiers | |||||
 Livestock subgroup efficiency TEg | |||||
  Land (ha) | 90.44 | 71.95 | 0.79 | − 18.49 | |
  Expe (€’000) | 346.50 | 312.58 | 0.83 | − 33.93 | |
  Work (€’000) | 137.62 | 115.57 | 0.83 | − 22.05 | |
 Crop subgroup efficiency TEg | |||||
  Land (ha) | 69.57 | 63.61 | 0.88 | − 5.97 | |
  Expe (€’000) | 108.65 | 95.43 | 0.86 | − 13.23 | |
  Work (€’000) | 109.67 | 99.93 | 0.89 | − 9.74 | |