Table 9 General statistics concerning returns to scale (output 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 | 1,798 | 1,672 | 2,038 | 1,520 | 0,938 | 1,013 | 1,028 |
max Σ λ CRS | 3,721 | 3,433 | 7,018 | 3,207 | 1,288 | 1,822 | 1,465 |
DMU with max Σ λ CRS | 3 | 3 | 14 | 14 | 15 | 11 | 1 |
# of DMUs with Σ λ CRS >1 | 18 | 16 | 15 | 15 | 6 | 7 | 10 |
min Σ λ CRS | 1 | 1 | 0,884 | 0,781 | 0,483 | 0,581 | 0,544 |
DMU with min Σ λ CRS | - | - | 9 | 9 | 9 | 12 | 9 |
# of DMUs with Σ λ CRS <1 | 0 | 0 | 2 | 1 | 8 | 7 | 6 |
# of DMUs with Σ λ CRS =1 | 4 | 6 | 5 | 6 | 8 | 8 | 6 |