Research methods used in articles
| Research methods | Number of articles | Percentage (%) |
|---|---|---|
| Mono-method research | 58 | 71 |
| 26 | 32 |
| 8 | 10 |
| 8 | 10 |
| 7 | 9 |
| 4 | 5 |
| 4 | 5 |
| 1 | 1 |
| Multi-method research | 24 | 29 |
| 8 | 10 |
| 5 | 6 |
| 3 | 4 |
| 3 | 4 |
| 2 | 2 |
| 1 | 1 |
| 1 | 1 |
| 1 | 1 |
| Total articles | 82 |
| Research methods | Number of articles | Percentage (%) |
|---|---|---|
Modelling / optimisation | 26 | 32 |
Interview | 8 | 10 |
Review | 8 | 10 |
Conceptual | 7 | 9 |
Case study | 4 | 5 |
Survey | 4 | 5 |
Experiment | 1 | 1 |
Case study & Modelling / optimisation | 8 | 10 |
Survey & Modelling / optimisation | 5 | 6 |
Survey & Interview | 3 | 4 |
Interview & Case study | 3 | 4 |
Review & Survey | 2 | 2 |
Interview & Modelling / optimisation | 1 | 1 |
Review & Case study | 1 | 1 |
Survey & Case study | 1 | 1 |
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