A substantial bonus is justified once an alliance passes a clearly defined threshold, because the ability to form a stable government benefits voters.

A modest bonus may be appropriate, but it should be limited enough to preserve meaningful representation for voters supporting smaller parties.

Extra seats should be available only after a second-round election gives voters a direct opportunity to choose between the leading alliances.

Parliamentary majorities should be negotiated after elections, because coalition-building reflects the distribution of votes more faithfully than automatic seat bonuses

No bonus should be awarded under any circumstances, since each party's parliamentary representation should remain strictly proportional to its electoral support.

Majority bonuses could be acceptable if introduced well before elections and approved through a broad agreement spanning government and opposition parties.