Table 3.
Model comparison
| Model | K | AIC | Δi | wi |
| Total fertility | ||||
| Economic/investment model | 7 | 2950.1 | 0 | 0.738 |
| Risk/mortality model | 7 | 2952.4 | 2.3 | 0.234 |
| Cultural transmission model | 7 | 2956.6 | 6.5 | 0.029 |
| Base model | 2 | 2978.5 | 28.4 | 0.000 |
| Surviving children | ||||
| Economic/investment model | 6 | 2800.4 | 0 | 0.996 |
| Risk/mortality model | 6 | 2811.8 | 11.4 | 0.004 |
| Cultural transmission model | 8 | 2815.2 | 14.8 | 0.001 |
| Base model | 2 | 2825.4 | 25.0 | 0.000 |
K refers to the number of fitted parameters for each model; Δi refers to the change in AIC between the lowest value and the variable of interest; wi refers to the Akaike weight.