Barbados holds a 70–30 advantage over St. Vincent and the Grenadines on the Relative Advantage Index, a decisive margin.
The margin is driven by economic size (GDP) (87% of the combined total, $7.5bn) and active personnel (100% of the combined total, 1.0k). St. Vincent and the Grenadines leads on logistics & power projection.
2 factors — military spending, nuclear warheads — could not be scored because the figure is unpublished for at least one side. Those factors are excluded and the remaining weights renormalised, never substituted.
| Factor | Barbados | Share | St. Vincent and the Grenadines | Weight |
|---|---|---|---|---|
Economic size (GDP) World Bank WDI | $7.5bn | 87%13% | $1.2bn | 40% |
Active personnel COW NMC | 1.0k | 100%0% | 0 | 30% |
Logistics & power projection OurAirports | 1 | 17%83% | 5 | 30% |
Shares are each side's portion of the combined total for that factor. Weights are renormalised across the factors both sides publish — see the methodology. Data read 2026-08-04.
Every combination inside the top 30 of the Composite Power Index.
Bordering states — the comparisons people actually search for.