| Typicality: | 0.391 |
| Saliency: | 0.179 |
| economist → study → happiness | 4 |
| economist → examine → the evolution of happiness research | 3 |
| negative | neutral | positive |
| 0.057 | 0.487 | 0.456 |
| Raw frequency | 7 |
| Normalized frequency | 0.179 |
| Modifier score | 0.700 |
| Perplexity | 144.935 |