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Multi-member plurality — Block Voting (3 seats): majority sweeps

Generated from mmp_block_voting.yaml — do not edit by hand. Regenerate: python STARVote_LH_tabulation_engine/tools_adam/scripts/build_yaml_pages.py.

Method: plurality · 3 seats · Expected winners: Ada, Ben, Cal

▶ Live on BetterVoting: vote · results ↗ (election 3x4vrv · test BV2135).

Official tie-break (lot) order: Ada > Ben > Cal > Uma > Val > Wren — consulted only if every deterministic tiebreaker stays tied (how the ladder works).

Scenario

One of three races comparing the multi-member plurality family on the SAME 60/40 electorate (LH-only — see the set README). 10 voters, 3 seats: a 6-voter MAJORITY (Home party: Ada, Ben, Cal) and a 4-voter MINORITY (Away party: Uma, Val, Wren).

BLOCK VOTING (plurality-at-large): each voter casts as many votes as there are seats (3) and votes their full slate. So every Home candidate gets all 6 majority votes and every Away candidate all 4 minority votes — Ada, Ben, Cal (6 each) beat Uma, Val, Wren (4 each) and the majority SWEEPS all three seats, 3-0. The 40% minority is shut out entirely. Contrast SNTV and Limited Voting (same electorate), where the minority earns a seat.

Ballots

Row 1 = candidate names; each later row is one voter's 0–5 scores (a N × prefix = N identical ballots).

Ada,Ben,Cal,Uma,Val,Wren
6: 1,1,1,0,0,0
4: 0,0,0,1,1,1

What the engine says

Full report from the _tabulated mirror (regenerated on every run; every analysis forced on):

--- Block Voting (plurality-at-large) — 3 winners ---
 Tabulating 10 ballots (3 votes/voter).

Votes (most votes fill the seats):
   Ada      6  <- Elected
   Ben      6  <- Elected
   Cal      6  <- Elected
   Uma      4
   Val      4
   Wren     4

Winners — Block Voting (plurality-at-large), 3 seats:
   1. Ada   (6 votes)
   2. Ben   (6 votes)
   3. Cal   (6 votes)

Run it yourself:

python STARVote_LH_tabulation_engine/starvote_larry_hastings.py method_comparisons/multi_member_plurality/cases/mmp_block_voting.yaml

See also

More cases in this set: mmp_limited_voting · mmp_majority_ceiling · mmp_sntv