Mauritius holds a 62–38 advantage over Seychelles on the Relative Advantage Index, a clear margin.
The margin is driven by economic size (GDP) (87% of the combined total, $14.9bn) and logistics & power projection (57% of the combined total, 4). Seychelles leads on military spending.
2 factors — active personnel, nuclear warheads — could not be scored because the figure is unpublished for at least one side.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 | Mauritius | Share | Seychelles | Weight |
|---|---|---|---|---|
Military spending SIPRI Milex | $23.8m | 46%54% | $28.4m | 42% |
Economic size (GDP) World Bank WDI | $14.9bn | 87%13% | $2.2bn | 33% |
Logistics & power projection OurAirports | 4 | 57%43% | 3 | 25% |
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.