First-Past-the-Post vs Proportional Representation: Electoral Systems Compared

Coalition formation in parliamentary systems follows two main strategies: (1) A party becomes the strongest after elections and forms a government, potentially causing other parties to abandon their red lines against cooperation, or (2) A party enters government as a junior partner or tolerating party in a minority government, voting with the government on key issues without being part of the coalition. Coalitions become unstable when partner parties lack mutual trust and have fundamentally different political orientations, potentially leading to government collapse. This creates opportunities for alternative government formations and political realignments.

Portfolio allocation in coalition governments determines political tensions and stability. The video explains that important portfolios like Finance, Home, and Defense are distributed based on PM confidence rather than proportional sharing. When coalitions face uncertainty about forming majority governments, they may need to function as minorities dependent on ally assurances. Such governments survive through transparency and constructive cooperation, not bullying tactics. Coalition stability depends entirely on functioning differently from previous administrations and improving performance to retain public and parliamentary confidence.

Larger coalitions provide greater government stability in parliamentary systems. A coalition of 280 seats is considered stable and makes position allocation relatively easy. However, larger coalitions with three or more parties (such as 340 seats) create more complex bargaining situations where any single party withdrawal could cause chaos. Middle-tier parties typically do not protest and accept positions, while smaller parties may demand more concessions. The optimal coalition size balances ideological alignment with practical governance stability.

When governments lack parliamentary majority and cannot pass legislation, they may collapse, triggering calls for early elections. Prime ministers may avoid elections due to fear of electoral backlash from unpopular policies affecting middle and lower-income classes. Coalition governments form when no single party achieves majority, requiring negotiations and compromises on policy positions. Minority governments lack majority but secure external support for specific votes. Small parties can exert disproportionate influence, described as 'the egg of the quail' - a small weight that tips the balance. This dynamic can make larger parties vulnerable to pressure, potentially compromising national interests for party-specific gains. Coalition stability depends on maintaining comfortable majorities (70-85 seats) rather than weak majorities (50+1), which can collapse if members defect. This creates incentives for broader coalitions and ongoing negotiation to maintain stability.

In a parliamentary system, the executive branch (government) is responsible for implementing laws and administering the state, consisting of the President (nominal head), Prime Minister and Council of Ministers (real executive), and bureaucracy; it performs key functions including law implementation, maintaining law and order, diplomatic relations, and providing justice, with the Council of Ministers being the core decision-making body that operates on the principle of collective responsibility.

Single Transferable Vote (STV) is used in multi-member districts where voters rank candidates by preference. The system calculates a quota for election, transfers surplus votes to second choices, and eliminates candidates with fewest votes, transferring their votes to next preferences. This dramatically reduces wasted votes and forces candidates to seek broader support. Mixed Member Proportional (MMP) systems, used in Germany and New Zealand, combine local representation with proportional outcomes. Voters cast two votes: one for a local candidate and one for a political party. The party vote determines overall seat percentages, with compensatory list seats ensuring proportional representation. This corrects distorting effects of winner-take-all in local districts while giving voters a direct local representative. Both systems create structural incentives for moderation because forming a government usually requires compromise.

The Alternative Vote (AV) System, used in Australia and for Indian Vice Presidential elections, allows voters to rank candidates in order of preference. The candidate who receives more than 50% of first-preference votes wins. If no candidate achieves this, the candidate with the fewest votes is eliminated and their votes are redistributed according to voters' next preferences. This process continues until a candidate achieves a majority. The Single Transferable Vote (STV) System, used in Ireland and Northern Ireland, is a proportional representation method that allows multiple candidates to be elected from a single constituency. Voters rank candidates, and seats are allocated based on a quota system calculated by dividing total votes by seats plus one. Candidates reaching the quota are elected, and their surplus votes are transferred to other candidates.

The Additional Member System (AMS) combines constituency voting with party-list proportional representation, used in Scotland, Wales, and Greater London. Voters cast two votes: one for a constituency representative elected via FPTP, and another for a party. The D'Hondt formula allocates additional seats to correct constituency disproportionality. Scotland's Parliament has 129 members (73 constituency, 56 list). AMS maintains local representation while achieving proportionality—parties receive additional seats to compensate for underperformance in constituencies. Voters gain split-ticket options and fewer wasted votes. Single Transferable Vote (STV) uses multi-member constituencies with preferential voting and the Droop quota formula, employed in Northern Ireland Assembly and Scottish council elections. Voters rank all candidates; those reaching quota thresholds are elected, with surplus votes transferring to other candidates based on preferences. This creates highly proportional results with minimal wasted votes and enables power-sharing governments essential for post-conflict stability.

The UK uses multiple voting systems across different regions. The Additional Member System (MMP) in Scotland, Wales, and London uses two votes: one for local representatives and one for parties, ensuring votes always count. The Single Transferable Vote (STV) in Scotland and Northern Ireland elects teams of representatives through ranked preferences, allowing smaller parties to win. The Supplementary Vote, used for mayoral elections, allows voters to rank candidates, with votes transferring to second choices if no one achieves 50%. These systems better translate voter preferences into seats compared to FPTP's winner-takes-all approach.

This segment uses New Zealand's MMP electoral reform as a detailed case study of successful campaigning. The Electoral Reform Commission (ERC) formed when citizens who had submitted to the Royal Commission organized to advocate for MMP, a German electoral system allowing smaller parties. Despite opponents having millions more dollars, the ERC succeeded through hundreds of grassroots campaigners representing diverse society. The campaign had a clear vision (representative parliament) and specific goal (implement MMP). The 1993 referendum succeeded with 54% support, demonstrating that organized grassroots action can overcome financial disadvantages. The case illustrates how campaigns need vision, achievable goals, team building, and persistent action to achieve systemic change.

New Zealand's transition from first-past-the-post to mixed-member proportional (MMP) electoral system in 1993 represents a landmark case of grassroots-driven democratic reform, driven by public dissatisfaction with 'stolen elections' where parties won majorities with fewer votes, and catalyzed by a comprehensive Royal Commission report recommending MMP as the fairest system; this reform has significantly increased women's and Maori representation in Parliament, transformed coalition government formation, and fundamentally altered parliamentary operations through enhanced select committee powers and modified collective responsibility arrangements.

The 1993 New Zealand MMP referendum represents one of the most significant electoral system reforms in modern history. Despite opposition from major political parties, business interests, and even future prime ministers, 54% of New Zealanders voted to change from First Past the Post to Mixed Member Proportional representation. This made New Zealand the only British colony to successfully transition away from First Past the Post. The reform resulted in a five-party parliament with six parties represented, enabling more diverse political competition and coalition governance. This case demonstrates that democratic majorities can overcome institutional resistance to change electoral systems, and that electoral design significantly impacts political competition and representation.

New Zealanders chose MMP (Mixed Member Proportional) electoral system three times through referendums in 1992, 1993, and 2011, driven by widespread public frustration with a broken political system where third parties received 18-21% of votes but won no seats, and where major parties lacked public mandate for radical changes; despite attempts by the National Party to sabotage the option by adding extra seats and manipulating debate questions, the system was ultimately adopted as New Zealand's only mechanism for political reform, representing a more equitable and representative form of government that allows smaller parties to gain parliamentary representation.

New Zealand successfully transitioned from a first-past-the-post voting system to Mixed Member Proportional (MMP) representation through a combination of public disillusionment with the existing system, a Royal Commission's comprehensive recommendations, and a unified public campaign. The process involved two referendums (1992 and 1993) where over 80% of voters supported change and 54% voted for MMP, leading to the adoption of a system that has produced multi-party governments, increased political diversity, and greater representation of women, Maori, and LGBTQ+ communities in parliament.

The U.S. uses plurality voting in 45 states, where candidates win with the most votes without needing a majority. This system enables gerrymandering, where minority populations can be completely excluded from representation. The Voting Rights Act of 1965 addressed this by requiring proportional minority representation in districts. Alternative systems like Single Transferable Vote (used in Alaska and Maine) and Multimember Transferable Vote (used in Northern Ireland, Iceland, New Zealand) allow minorities to achieve representation disproportionate to their population size. Northern Ireland adopted this system to end civil conflict by ensuring minority voices had government representation.

Electoral systems can disadvantage minority representation. Changes to electoral methods can reduce minority representation and concentrate power in major political parties. Citizens must understand how electoral systems affect their ability to participate in democratic processes.

Electoral systems determine how votes are translated into political representation, with different systems affecting the representation of minority groups and smaller political parties. Some electoral systems may result in reduced representation for minority communities, particularly when voting districts are drawn in ways that concentrate minority populations or when electoral thresholds prevent smaller parties from gaining representation. The design of electoral systems has significant implications for the political participation and representation of various demographic groups within a society.

A 5% increase in minority voter turnout (from 51% to 56%) would shift the 2020 electoral map from 306-232 to 297-241 in favor of Democrats, flipping Michigan, Pennsylvania, and Florida (65 electoral votes combined), demonstrating that minority voter participation is a critical factor in determining presidential election outcomes.

The relationship between voter turnout and electoral outcomes has significant implications for democratic representation. In the 2017 German federal election, 48 million of 61 million eligible voters participated (77% turnout), with the CDU/CSU receiving 15.39 million votes, representing approximately 31% of all eligible voters. This demonstrates that even with high turnout, apparent majorities can still represent minority support. To achieve a true absolute majority (more than 50% of all eligible voters), parties must form coalitions, typically requiring a 'grand coalition' where multiple parties combine their support. Without such coalitions, parties may govern with only minority support, relying on the acceptance of non-supporters rather than genuine majority backing. Different countries handle voter turnout differently, with some implementing compulsory voting with penalties for non-participation, which increases turnout rates and generally leads to more accurate representation of the true political will.