Barbados

Barbados is a unitary parliamentary republic. The country has been a republic since 2021, having been a constitutional (parliamentary) monarchy before that.

The lower house of its bicameral parliament ('House of Assembly') is directly elected, with electoral system inherited from the British, by first-preference plurality (FPP, aka first-past-the-post, FPTP) in single-member (single-seat) districts. The relavance of tactical voting is therefore very high and the results are highly disproportional: the system has produced a completely one-party parlament (0 opposition members) on several occasions.