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Table Of Contents
Alternative Voting Systems: Pros and Cons
1. Approval Voting
- How It Works: Voters can vote for ("approve of") as many candidates as they like. The candidate with the most approvals wins.
- Pros:
- Simple and easy to implement.
- Eliminates the spoiler effect by allowing voters to support multiple candidates.
- Encourages coalition-building and broad appeal.
- Cons:
- Doesn't reflect intensity of voter preferences (e.g., strong preference for one candidate vs. lukewarm support for several).
- Can disadvantage polarizing candidates who are disliked by a majority but have passionate supporters.
2. Score Voting (Range Voting)
- How It Works: Voters rate each candidate on a numerical scale (e.g., 0-5 or 0-10). The candidate with the highest average or total score wins.
- Pros:
- Captures intensity of voter preferences.
- Reduces polarization by rewarding broadly acceptable candidates.
- Simple to tally.
- Cons:
- Voters may "strategically" under-score strong opponents to boost their favorite.
- Doesn't guarantee a majority-preferred winner (e.g., a candidate with high average scores but not the top choice for most voters could win).
3. STAR Voting (Score Then Automatic Runoff)
- How It Works: Voters rate candidates on a scale (e.g., 0-5). The two highest-scoring candidates go to an automatic runoff, and the candidate preferred by more voters wins.
- Pros:
- Combines benefits of score voting and ranked-choice voting.
- Ensures majority rule in the final runoff.
- Reduces negative campaigning as candidates seek broader support.
- Cons:
- More complex than approval or score voting.
- Potentially unfamiliar to voters, requiring education.
4. Single Transferable Vote (STV)
- How It Works: Voters rank candidates, and excess votes for winning candidates and votes for eliminated candidates are redistributed until all seats are filled.
- Pros:
- Proportional representation ensures diverse viewpoints.
- Reduces wasted votes and increases voter satisfaction.
- Cons:
- Complex vote-counting process.
- Can confuse voters if not well-explained.
5. Mixed-Member Proportional (MMP)
- How It Works: Voters cast two votes: one for a candidate in their district and another for a political party. The legislature's composition reflects party vote shares.
- Pros:
- Balances direct representation with proportional representation.
- Prevents overrepresentation of dominant parties.
- Cons:
- Can lead to coalition governments, which some argue are less stable.
- More complex ballots and vote-counting processes.
6. Condorcet Voting
- How It Works: Voters rank candidates, and the winner is the candidate who would win every head-to-head matchup against other candidates.
- Pros:
- Guarantees the most broadly supported candidate wins.
- Eliminates vote splitting and the spoiler effect.
- Cons:
- Can produce "Condorcet cycles," where no candidate is preferred in all pairings.
- Complex to implement and explain.
7. Two-Round System (Runoff Voting)
- How It Works: If no candidate wins a majority in the first round, the top two candidates face off in a second round of voting.
- Pros:
- Ensures majority support for the winner.
- Simple and familiar to many voters.
- Cons:
- Expensive and time-consuming to hold a second election.
- Low turnout in the second round is common.
8. Proportional Representation (PR)
- How It Works: Seats in a legislature are allocated based on the percentage of votes each party receives.
- Pros:
- Accurately reflects the electorate’s preferences.
- Encourages multi-party systems and coalition-building.
- Cons:
- Can weaken direct local representation.
- Coalition governments may be unstable or slow to make decisions.
9. Cumulative Voting
- How It Works: Voters have a number of votes equal to the number of seats and can allocate them freely (e.g., all votes to one candidate or spread across several).
- Pros:
- Promotes minority representation.
- Gives voters flexibility in expressing preferences.
- Cons:
- Strategic voting can complicate outcomes.
- May lead to unequal representation if voters don't fully understand the system.
10. Delegated Voting (Liquid Democracy)
- How It Works: Voters can vote directly or delegate their vote to a trusted representative, who can further delegate it.
- Pros:
- Combines direct and representative democracy.
- Allows voters to participate at their comfort level of expertise.
- Cons:
- Complex to implement and manage in large-scale elections.
- Risk of power concentration in a few trusted representatives.
11. Quadratic Voting
- How It Works: Voters allocate votes across multiple issues or candidates, but the cost of additional votes increases quadratically.
- Pros:
- Encourages voters to prioritize their strongest preferences.
- Balances majority rule with minority interests.
- Cons:
- Complex to understand and calculate.
- May be perceived as unfair due to the "cost" of voting.
12. Majority Judgment
- How It Works: Voters rate candidates with qualitative judgments (e.g., Excellent, Good, Fair). The candidate with the highest median rating wins.
- Pros:
- Reduces strategic voting and polarization.
- Simple and intuitive for voters.
- Cons:
- Median-based systems can lead to ties.
- Less familiar to voters and policymakers.