11 Facts About Tactical voting

Strategic Tactical voting is observed due to non-proportionality, electoral thresholds and quotas.

Since then tactical voting has become a consideration in British politics as is reflected in by-elections and by the growth in sites such as tacticalvote.

Academic analysis of tactical voting is based on the rational voter model, derived from rational choice theory.

Tactical voting relies heavily on voters' perception of how other voters intend to vote, campaigns in electoral methods that promote compromise frequently focus on affecting voter's perception of campaign viability.

Tactical voting is highly dependent on the voting method being used.

Arrow's impossibility theorem and the Gibbard–Satterthwaite theorem prove that any useful single-winner Tactical voting method based on preference ranking is prone to some kind of manipulation.

Tactical voting by compromising is exceedingly common in plurality elections.

All cardinal Tactical voting methods fail the later-no-harm criterion due to favoring consensus options.

Tactical voting voters are faced with the initial tactic as to how highly to score their second-choice candidate.

Instant runoff Tactical voting is vulnerable to push-over and compromising strategies.

Bullet Tactical voting is ineffective under Instant-runoff, since Instant-runoff satisfies the later-no-harm criterion.