Table 8 General statistics concerning returns to scale (input orientation)
From: On evaluating health centers groups in Lisbon and Tagus Valley: efficiency, equity and quality
Model I | Model II | Model III | Model IV | ||||
|---|---|---|---|---|---|---|---|
Year | 2009 | 2010 | 2009 | 2010 | 2009 | 2010 | 2010 |
Σ λ CRS average | 1.393 | 1.310 | 0.753 | 0.829 | 0.857 | 0.945 | 0.942 |
max Σ λ CRS | 3.506 | 2.941 | 1.137 | 1.284 | 1.123 | 1.488 | 1.316 |
DMU with max Σ λ CRS | 3 | 3 | 1 | 16 | 21 | 11 | 16 |
# of DMUs with Σ λ CRS >1 | 14 | 12 | 2 | 4 | 3 | 6 | 6 |
min Σ λ CRS | 0.862 | 0.941 | 0.362 | 0.486 | 0.473 | 0.518 | 0.523 |
DMU with min Σ λ CRS | 12 | 5 | 9 | 9 | 9 | 5 | 9 |
# of DMUs with Σ λ CRS <1 | 4 | 4 | 15 | 12 | 11 | 8 | 10 |
# of DMUs with Σ λ CRS =1 | 4 | 6 | 5 | 6 | 8 | 8 | 6 |