Table 12.
Co-word frequencies and centrality values.
| Word | Frequency | Word | Centrality | SI word | Frequency |
|---|---|---|---|---|---|
| Airport | 154 | Airport | 0.13 | Recovery | 30 |
| Model | 152 | Model | 0.13 | Crisis | 28 |
| Airline | 130 | Efficiency | 0.10 | Disruption | 20 |
| Performance | 100 | Low cost carrier | 0.10 | Disease | 5 |
| Impact | 100 | Impact | 0.09 | Pandemic | 3 |
| Competition | 90 | Passenger | 0.08 | Influenza | 2 |
| Service quality | 70 | Competition | 0.08 | Outbreak | 2 |
| Industry | 53 | Airline | 0.07 | SARS | 1 |
| Demand | 53 | Network | 0.07 | Swine flu (H1N1) | 0 |
| Efficiency | 53 | System | 0.07 | ||
| Air transport | 47 | Airline industry | 0.07 | ||
| Low-cost carrier | 44 | Behavior | 0.07 | ||
| Service | 44 | Industry | 0.06 | ||
| Aviation | 43 | Service quality | 0.06 | ||
| Network | 38 | Demand | 0.06 |