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Belief
Ranked-choice voting produces better electoral outcomes than plurality voting. 0.50 Agree Disagree
If you disagree, this page has a column for you. A study, record or dataset for “Ranked-choice voting eliminates the spoiler effect”, which rests on argument alone.
Argument TreesHow arguments are scored →
Reasons to agree
| # | Argument | Truth | Conf | Link | Imp | Uniq | Score |
|---|---|---|---|---|---|---|---|
| 1 | Ranked-choice voting eliminates the spoiler effect.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | +0.00 |
| 2 | Ranked-choice voting produces winners backed by a majority of voters.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | +0.00 |
| 3 | Ranked-choice voting rewards candidates who build coalitions.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | +0.00 |
| 4 | Ranked-choice voting makes third parties more viable.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | +0.00 |
Reasons to disagree
| # | Argument | Truth | Conf | Link | Imp | Uniq | Score |
|---|---|---|---|---|---|---|---|
| 1 | Ranked-choice voting causes voter confusion and ballot errors.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | -0.00 |
| 2 | Under ranked-choice voting, ballots become exhausted and stop counting before the final round.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | -0.00 |
| 3 | Ranked-choice voting is non-monotonic, so ranking a candidate higher can cause that candidate to lose.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | -0.00 |
| 4 | Ranked-choice voting adds cost and complexity to running elections.Agree Disagree | 0.50 | 0.00 | 1.00 | 0.50 | 1.00 | -0.00 |
Weight for 0.00 · weight against 0.00 · net +0.00
Each reason is a claim with its own page. Score = sign x (2 x Truth - 1) x Conf x Link x Imp x Uniq, and every column is here so the row can be multiplied out and checked. A reason argued false scores negative and counts against the side it is filed on; a reason nobody has argued yet scores exactly 0, and so does one whose own page has no work behind it.
What Would Change the AnswerTruth scores →
Not shown: 10 further inputs, each moving it less than any row shown
Every claim beneath this page held at false and then at true, one at a time, with the whole graph recomputed each time. "If false" and "if true" are where this page’s truth score lands; "Move" is how far apart they are. "If settled" is that same distance with the input’s confidence held at 1, which is what it would be worth once the work behind it is finished, so the gap between Move and If settled is the value of doing that work. This is one input at a time and finds single points of failure; it does not test several inputs moving together, which is how correlated assumptions actually fail.
Evidence LedgerHow evidence is scored →
Supporting
Weakening
| # | Finding | Bears on | Starts at | Truth | Conf | Link | Imp | Score | EVS |
|---|---|---|---|---|---|---|---|---|---|
| 1 | In the 2021 New York City mayoral primary, 14.9% of ballots were exhausted by the final round. Rests on: Nothing observed: no source type recorded, so this claim starts at a coin flip | this belief | 0.50 | 0.50 | 0.00 | 1.00 | 0.50 | -0.00 | 0.00 |
| 2 | In Burlington, Vermont's 2009 election, the candidate who would have beaten every rival head to head (the Condorcet winner) was eliminated early, and voters repealed ranked-choice voting in 2010. Rests on: Nothing observed: no source type recorded, so this claim starts at a coin flip | this belief | 0.50 | 0.50 | 0.00 | 1.00 | 0.50 | -0.00 | 0.00 |
| 3 | Australian invalid-ballot rates run 2 to 5%, which indicates a real learning curve. Rests on: Nothing observed: no source type recorded, so this claim starts at a coin flip | this belief | 0.50 | 0.50 | 0.00 | 1.00 | 0.50 | -0.00 | 0.00 |
| 4 | Jurisdictions that adopt ranked-choice voting document higher up-front equipment, training, and tabulation costs. Rests on: Nothing observed: no source type recorded, so this claim starts at a coin flip | this belief | 0.50 | 0.50 | 0.00 | 1.00 | 0.50 | -0.00 | 0.00 |
Weight for 0.00 · weight against 0.00 · net +0.00
Evidence Verification Score 0.00 · supporting 0.00 · weakening 0.00. 8 of 8 findings have no source type named yet; 8 have no replication count recorded, so each counts as one study.
Findings that can fail empirically. Each has its own page where its accuracy is argued; the source is shown under it. Bears on says which claim the finding is filed under: this belief, or one of its reasons, in which case it reaches this page through that reason's truth score and is counted there. “Starts at” is where a finding's page begins before anyone argues with it, set by what kind of source it is, how many independent replications exist and how many of them agreed. A finding nobody has classified starts at 0.50, and at 0.50 it contributes nothing however often it is listed.
Testable PredictionsEvidence and predictions →
Follows if the belief is true
| Prediction | Truth | Conf | Link | Imp | Contrib. | At stake |
|---|---|---|---|---|---|---|
| Voter error rates fall after the first ranked-choice voting cycle in a jurisdiction. By when, and how it is checked: 2 to 3 cycles; spoiled-ballot rates over time | 0.50 | 0.00 | 1.00 | 0.50 | +0.00 | 0.00 |
| Jurisdictions using ranked-choice voting show more majority winners and fewer spoiler outcomes than comparable jurisdictions using plurality voting. No deadline or method stated yet. | 0.50 | 0.00 | 1.00 | 0.50 | +0.00 | 0.00 |
| In a jurisdiction that adopts ranked-choice voting, the cost of running each election falls after the initial outlay for ranked-choice voting equipment. By when, and how it is checked: 5+ years; jurisdiction budget records | 0.50 | 0.00 | 1.00 | 0.50 | +0.00 | 0.00 |
Follows if the belief is false
| Prediction | Truth | Conf | Link | Imp | Contrib. | At stake |
|---|---|---|---|---|---|---|
| Jurisdictions using ranked-choice voting show no rise in majority winners, persistently high ballot exhaustion, or falling turnout that does not recover. No deadline or method stated yet. | 0.50 | 0.00 | 1.00 | 0.50 | -0.00 | 0.00 |
Prediction contribution +0.00 · points at stake 0.00 · 50% of predictions are diagnostic and dated
If this belief is true, what should the world show that it would not show otherwise; if false, what instead? Result so far is the prediction's own page: pending at 0.50, and moving as it comes true or fails. A pending prediction contributes nothing yet; At stake is what it would contribute once settled.
Interests, Not PositionsConflict resolution framework →
Interests of each side
Interests of supporters
| Interest (a need; its page argues validity) | Validity | Drives | Score | Value |
|---|---|---|---|---|
| Third-party and independent candidates need to break the two-party lock on elections. | 0.50 | 0.50 | 0.25 | Representation |
| Voters whose first choice is a third-party or independent candidate need to vote sincerely without wasting their vote. | 0.50 | 0.50 | 0.25 | Representation |
Interests of opponents
| Interest (a need; its page argues validity) | Validity | Drives | Score | Value |
|---|---|---|---|---|
| Sitting officeholders and Democratic and Republican party leaders need to protect the advantage of incumbents and major parties. | 0.50 | 0.50 | 0.25 | |
| County and municipal election officials need to keep elections cheap and simple to administer. | 0.50 | 0.50 | 0.25 | Simplicity and trust |
Primary conflict pair (computed: the interest with the highest Validity x Drives on each side) Third-party and independent candidates need to break the two-party lock on elections. (0.50 x 0.50) against Sitting officeholders and Democratic and Republican party leaders need to protect the advantage of incumbents and major parties. (0.50 x 0.50). 50% of the paired weight sits on the supporting side. This is the one disagreement actually driving the debate: the product uses validity on purpose, so a cover story cannot lead a side and neither can a worthy need nobody is moved by. Validity is whether the need should be honored, argued on its own page and never by the power of who holds it; Drives is whether the need is really why this side holds its position, settled by what the side does. They are different numbers.
Shared interests
| Both sides need legitimate winners that voters trust. | 0.50 |
Best compromise
| Ranked-choice voting should be phased in at the local level first, with funded equipment, voter education, and a rule that voters rank enough candidates to cut ballot exhaustion. | Rests on Why difficult | 0.50 |
Positions are what people say they want; interests are why. Each interest is a need with a subject (who needs what), and that one sentence is argued two ways that never borrow from each other. Validity asks whether the need should be honored, and is settled on the interest's own page by the mirror test: would the side accept the same need honored for its opponents, and what happens if everyone pursues it? Who holds the need, how many of them there are and how much power they have never count. Drives asks whether this need is really why the side holds its position, and is settled by the side's record, not its rhetoric (the scoring methodology calls it Linkage Accuracy). Score = Validity x Drives. A motive that is real and illegitimate stays in the table with its low validity: it is scored, not deleted, and the same suspicion applies to both sides.
Related Beliefs
- We should support and strengthen democracy to restore the voter's voice. 0.50
- We should defend the United States Constitution. 0.50
- Congressional term limits would reduce corruption and improve legislative quality. 0.50
- Representative civic juries should be convened, online and in person, to deliberate on key legislation. 0.50
- Ranked-choice voting produces better electoral outcomes than plurality voting. (this page)
The other beliefs filed under Democracy & Rule of Law; this one is listed unlinked.
Not filled in yet
| Falsifiability Test | nothing named that would strengthen or weaken this belief if it turned up |
| Objective Criteria | no yardstick both sides would accept in advance has been proposed |
| What Acting On This Would Cost and Gain | no costs or benefits priced yet |
| Logical Anatomy | the claim has not been split into its component parts |
| Media Resources | no books, studies or films weighed |
| Legal Framework | no laws or rulings cited |
| General to Specific | not linked to broader or narrower beliefs |
Parts of the template nobody has filled in here. They are named rather than shown, because an empty table is not a finding, and each one is a reason the confidence above is not higher. A part that takes rows has a form for its first one.
What this page needs right now
| # | The gap | Where it goes | Who is best placed to fill it |
|---|---|---|---|
| 1 | A study, record or dataset for “Ranked-choice voting eliminates the spoiler effect”, which rests on argument alone | Evidence Ledger | anyone with the source |
| 2 | A measurement both sides would accept in advance, with the reading each side predicts | Objective Criteria | anyone who can name a yardstick the other side would sign |
Named gaps, read off the tables above, so a newcomer can see exactly where a contribution goes. None of them requires agreeing with the page, and each one links to the form it goes in.
What the numbers are made of
- Share on the agree side
- no scored weight either way
- Confidence
- 33%. Weakest parts: scrutiny 0% · grounding 0%
- Depended on
- ReasonRank 0.0033, 125 of 2173
- Strongest reason for
- Ranked-choice voting eliminates the spoiler effect. +0.00
- Strongest reason against
- Ranked-choice voting causes voter confusion and ballot errors. -0.00
- What would move this most
- Settling Ranked-choice voting eliminates the spoiler effect.: 0.50 if false, 0.50 if true
- Coverage
- Of 20 scored rows, 20 have no linkage page, 20 have no importance page, 20 have no uniqueness page. This page reads 24 other pages. 24 of them are one-sided or empty: Ranked-choice voting eliminates the spoiler effect.; Ranked-choice voting produces winners backed by a majority of voters.; Ranked-choice voting rewards candidates who build coalitions.; Ranked-choice voting makes third parties more viable.; Ranked-choice voting causes voter confusion and ballot errors.; Under ranked-choice voting, ballots become exhausted and stop counting before the final round.; Ranked-choice voting is non-monotonic, so ranking a candidate higher can cause that candidate to lose.; Ranked-choice voting adds cost and complexity to running elections.; Maine has run statewide ranked-choice voting in federal elections since 2018 with no chaotic or fraudulent outcomes.; Australia has used preferential voting for its federal House since 1918 with stable majority outcomes.; Academic simulations find that ranked-choice voting picks the candidate who would beat every rival head to head (the Condorcet winner) about 94% of the time, compared with about 70% for plurality voting.; Roughly 15 US congressional races from 1992 to 2022 were decided by a spoiler, and ranked-choice voting would have changed several of them.; In the 2021 New York City mayoral primary, 14.9% of ballots were exhausted by the final round.; In Burlington, Vermont's 2009 election, the candidate who would have beaten every rival head to head (the Condorcet winner) was eliminated early, and voters repealed ranked-choice voting in 2010.; Australian invalid-ballot rates run 2 to 5%, which indicates a real learning curve.; Jurisdictions that adopt ranked-choice voting document higher up-front equipment, training, and tabulation costs.; Third-party and independent candidates need to break the two-party lock on elections.; Voters whose first choice is a third-party or independent candidate need to vote sincerely without wasting their vote.; Sitting officeholders and Democratic and Republican party leaders need to protect the advantage of incumbents and major parties.; County and municipal election officials need to keep elections cheap and simple to administer.; Voter error rates fall after the first ranked-choice voting cycle in a jurisdiction.; Jurisdictions using ranked-choice voting show more majority winners and fewer spoiler outcomes than comparable jurisdictions using plurality voting.; In a jurisdiction that adopts ranked-choice voting, the cost of running each election falls after the initial outlay for ranked-choice voting equipment.; Jurisdictions using ranked-choice voting show no rise in majority winners, persistently high ballot exhaustion, or falling turnout that does not recover..
- Bottom line
- The evidence gives ranked-choice voting a moderate advantage. The case that it removes the spoiler effect is strong and the record in Maine, Alaska and Australia is real; the strongest live objections are ballot exhaustion and the documented non-monotonicity failure in Burlington.
Scoring EngineTruth scores →
| Quantity | Value | How |
|---|---|---|
| Argument score | +0.00 | argument rows: weight for minus weight against |
| Evidence score | +0.00 | evidence rows: weight for minus weight against |
| Prediction contribution | +0.00 | prediction rows, same signed formula as every other row |
| Belief score | +0.00 | the three lines above added together |
| Positive total | 0.00 | every row whose signed contribution came out positive, from either side |
| Negative total | 0.00 | every row whose signed contribution came out negative, as a magnitude |
| Starting point | 0.50 | where this claim starts before any of its own rows count: Nothing observed: no source type recorded, so this claim starts at a coin flip |
| Weight of the starting point | 1.00 | k x a bounded reward for independent replication, k = 1, capped at 2.0 x k |
| Truth score, argued | 0.50 | (positive + weight x starting point) / (positive + negative + weight) |
| Truth score | 0.50 | argued truth, capped by the weakest load-bearing component that has its own page |
| ReasonRank | 0.0033 | how much of the site depends on this page: rank 125 of 2173. The share of a walk that starts at the 162 beliefs and steps to the pages they read, with a 0.85 chance of stepping on each time |
| Work value | 0.0022 | ReasonRank x (1 - confidence): how much settling this page would be worth to everything above it |
| Completeness | yes | at least one scored reason on each side (an importance page: at least one interest; an interest page: both readings filled) |
Cite this page Ranked-choice voting produces better electoral outcomes than plurality voting. Idea Stock Exchange, belief page ranked-choice-voting-produces-2, truth 0.50, confidence 33%, revision 42c8344 of 2026-10-04. The revision is what makes this quotable: these numbers move as the argument is worked on, and rebuilding that revision reproduces them exactly.
Every number on this page as data: ranked-choice-voting-produces-2.json. Constants: K = 1 · UNARG = 0.5 · DEFLINK = 1 · DEFIMP = 0.5 · DEFUNIQ = 1. A reason placed under a conclusion is presumed relevant until a linkage page says otherwise; the burden is on the challenger. The neutral start for importance, the wiki's own rule.
Every value here is computed from the tables above at build time. Nothing is typed.