Table 8.
General statistics concerning returns to scale (input orientation)
| |
Model I |
|
Model II |
|
Model III |
|
Model IV |
|---|---|---|---|---|---|---|---|
| Year | 2009 | 2010 | 2009 | 2010 | 2009 | 2010 | 2010 |
|
Σλ
CRS
average |
1.393 |
1.310 |
0.753 |
0.829 |
0.857 |
0.945 |
0.942 |
| max Σλ
CRS
|
3.506 |
2.941 |
1.137 |
1.284 |
1.123 |
1.488 |
1.316 |
| DMU with max Σλ
CRS
|
3 |
3 |
1 |
16 |
21 |
11 |
16 |
| # of DMUs with Σλ
CRS
>1 |
14 |
12 |
2 |
4 |
3 |
6 |
6 |
| min Σλ
CRS
|
0.862 |
0.941 |
0.362 |
0.486 |
0.473 |
0.518 |
0.523 |
| DMU with min Σλ
CRS
|
12 |
5 |
9 |
9 |
9 |
5 |
9 |
| # of DMUs with Σλ
CRS
<1 |
4 |
4 |
15 |
12 |
11 |
8 |
10 |
| # of DMUs with Σλ CRS =1 | 4 | 6 | 5 | 6 | 8 | 8 | 6 |