Table 6.
Comparison of the overall efficiency results before and after considering the deletion of outliers
| DMU | Overall efficiency score - all countries | Overall efficiency score-reduced sample | Total Efficiency Change | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 2000 | 2008 | 2016 | 2000 | 2008 | 2016 | 2000 | 2008 | 2016 | |
| AUS | 0.7178 | 0.6642 | 0.6429 | 0.9998 | 0.8443 | 0.8627 | 39.29% | 27.12% | 34.19% |
| AUT | 1 | 1 | 1 | ||||||
| BEL | 0.7453 | 0.9301 | 0.7541 | 0.797 | 0.9334 | 0.8668 | 6.94% | 0.35% | 14.94% |
| CAN | 1 | 1 | 1 | ||||||
| CZE | 1 | 1 | 0.9002 | ||||||
| DNK | 0.6655 | 0.6295 | 0.6551 | 0.71 | 0.6716 | 0.6776 | 6.69% | 6.69% | 3.43% |
| EST | 0.9373 | 0.7745 | 0.8453 | 1 | 1 | 1 | 6.69% | 29.12% | 18.30% |
| FIN | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| FRA | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| DEU | 0.7355 | 1 | 1 | ||||||
| GRC | 0.9229 | 1 | 1 | ||||||
| HUN | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| CHL | 1 | 1 | 1 | ||||||
| ISL | 0.867 | 0.7916 | 0.8221 | ||||||
| IRL | 0.7344 | 0.8987 | 0.8783 | 0.8661 | 1 | 1 | 17.93% | 11.27% | 13.86% |
| ISR | 1 | 1 | 1 | ||||||
| ITA | 0.7372 | 0.8175 | 0.7339 | 1 | 1 | 1 | 35.65% | 22.32% | 36.26% |
| JPN | 1 | 1 | 1 | ||||||
| LVA | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| LTU | 1 | 1 | 0.8578 | 1 | 1 | 1 | 0.00% | 0.00% | 16.58% |
| LUX | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| MEX | 1 | 1 | 1 | ||||||
| NLD | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| NZL | 0.697 | 0.7754 | 0.7781 | 0.9999 | 0.9999 | 0.9999 | 43.46% | 28.95% | 28.51% |
| NOR | 0.9071 | 0.9328 | 0.8682 | 1 | 1 | 1 | 10.24% | 7.20% | 15.18% |
| POL | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| PRT | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| KOR | 1 | 1 | 1 | ||||||
| SVK | 1 | 1 | 1 | ||||||
| SVN | 0.8853 | 1 | 1 | 0.9359 | 1 | 1 | 5.72% | 0.00% | 0.00% |
| ESP | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| SWE | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| CHE | 0.9985 | 0.9999 | 0.9999 | 0.9998 | 1 | 1 | 0.13% | 0.01% | 0.01% |
| TUR | 1 | 1 | 1 | ||||||
| GBR | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| USA | 1 | 1 | 1 | 1 | 1 | 1 | 0.00% | 0.00% | 0.00% |
| Average | 0.932 | 0.9504 | 0.9371 | 0.9699 | 0.9761 | 0.9742 | 4.07% | 2.70% | 3.96% |
| Standard deviation | 0.1106 | 0.0999 | 0.1057 | 0.0742 | 0.0732 | 0.0738 | |||
Source: Prepared by authors