Table 3.
Gravity model parameters (with 95% credible intervals) for models fitted to origin-destination pairs stratified by traveler group (W&C: women traveling with children; YW: youth workers) in all survey countries.
| Model: | Parameters: | Mali (W&C): | Mali (YW): | Burkina Faso (W&C): | Zambia (W&C): | Tanzania (W&C): | All countries (W&C): |
|---|---|---|---|---|---|---|---|
| Gravity model with τ | α | 1.76 (1.33–2.55) | 23.6 (2.8–70.6) | 1.72 (1.54–2.07) | 1.86 (1.60–2.19) | 2.32 (1.89–2.92) | 2.01 (1.83–2.23) |
| log(ρ) | 3.97 (3.05–4.87) | 8.90 (6.46–9.96) | 1.03 (0.05–2.75) | 3.40 (2.85–3.92) | 4.22 (3.59–4.85) | 3.68 (3.37–4.00) | |
| τ | 1.20 (1.14–1.26) | 1.26 (1.21–1.31) | 1.21 (1.14–1.28) | 0.76 (0.62–0.90) | 0.59 (0.40–0.77) | 1.12 (1.08–1.16) | |
| DIC | 2,472 | 4,390 | 2,496 | 4,010 | 3,591 | 12,679 | |
| Radiation model B | v | 1.95 (1.52–2.52) × 106 |
4.99 (3.99–6.30) × 106 |
1.13 (0.88–1.45) × 106 |
3.55 (2.76–4.50) × 105 |
7.66 (5.84–9.99) × 105 |
8.56 (7.52–9.74) × 105 |
| DIC | 2,518 | 4,486 | 2,508 | 4,027 | 3,618 | 12,758 |