Why are different electoral systems used for different elections in the UK?

Devolution and reform introduced more proportional systems for devolved bodies, while Westminster retained FPTP — reflecting different aims (proportionality vs decisive single-party government).

How does FPTP affect party representation?

It over-rewards larger parties and parties with concentrated support, and under-represents smaller parties whose vote is spread thinly across constituencies.

How do proportional systems affect voter choice?

They allow voters to support smaller parties without "wasting" their vote, widening effective choice and encouraging multi-party competition.

What is a "safe seat" and which system produces many of them?

A constituency a party is almost certain to win at every election; FPTP produces many safe seats, reducing the impact of many voters.

What is a "marginal seat"?

A constituency where the leading parties are close, so it can change hands — marginals attract disproportionate campaign attention under FPTP.

Edexcel A-Level Politics 9PL0

Democracy and Participation

Topic overview Current systems of representative and direct democracy A wider franchise and debates over suffrage Pressure groups and other influences Think tanks, lobbyists and corporations Rights in context

Political Parties

Topic overview Political parties and their funding Established political parties Emerging and minor political parties Party systems and parties in context

Electoral Systems

Topic overview Different electoral systems Referendums and how they are used Electoral system analysis

Voting Behaviour and the Media

Topic overview The 1979, 1997 and 2010 general election results Why elections are won and lost Class, partisanship and social factors Analysing voting behaviour data The influence of the media

Liberalism

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Parliament

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Topic overview The Supreme Court, judicial independence and judicial review Parliament and executive dominance The European Union and its impact on the UK The location of sovereignty in the UK

AnarchismNon-core

Topic overview Anarchism: core ideas and the rejection of the state Liberty, order and the anarchist economy Collectivist and individualist anarchism compared Types of collectivist anarchism Types of individualist anarchism Stirner and Proudhon Bakunin, Kropotkin and Goldman

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FeminismNon-core

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Topic overview Nationalism: core ideas and principles Different types of nationalism Rousseau, Herder and cultural nationalism Mazzini, Maurras and Garvey

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Topic overview Democratic features of the US Constitution Constitutional strengths, weaknesses and modern debates Federalism, state powers and the laboratories of democracy The Supreme Court, fiscal federalism and the centralisation debate

US CongressUSA

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US Democracy and ParticipationUSA

Topic overview The US two-party system How a president is elected The Electoral College and the debate on reform Democratic and Republican party ideas Voting coalitions in the 2024 presidential election Campaign finance and its regulation Interest groups: methods, access and power

Comparative Theories and the UK-US ComparisonUSA

Topic overview Comparing the UK and US legislatures: structure and powers Comparing the UK and US legislatures: strengths and approaches Comparing the executives: powers and selection Comparing the executives: accountability and approaches Comparing the Supreme Courts: powers and appointments Comparing rights protection and interest group litigation Comparing party systems and party ideas Comparing campaign finance and pressure groups Applying the three approaches to democracy and participation Comparative theories: rational, cultural and structural Comparing the UK and US constitutions

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Topic overview The nation state, sovereignty and key concepts The drivers of globalisation and interconnectedness Debates about the impact of globalisation How far globalisation addresses contemporary global issues

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Topic overview Regionalism: forms and growth Regionalism, sovereignty and levels of integration NAFTA, the USMCA and the African Union The Arab League and ASEAN The treaties that built the European Union EU institutions and enlargement Economic and Monetary Union and the euro Supranationalism, intergovernmentalism and the drivers of integration The EU's political and economic influence The EU's military influence and normative power How regionalism addresses conflict, poverty and rights The limits of regionalism in resolving global issues

Global Comparative TheoriesGlobal

Topic overview Realism: states, anarchy and the balance of power Liberalism: morality, interdependence and global governance Divisions between realism and liberalism The anarchical society and the society of states Evaluating realism and liberalism against events since 2000

Electoral Systems

Electoral system analysis

3 things to know
Component 1

Overview

Recall questions on why different systems are used for different elections, what each does to party representation and government formation, and safe and marginal seats.

What you need to know

Answer each one before you reveal it.

Your recallNot started

Evaluation

What are the main trade-offs between majoritarian and proportional systems?

Evaluation

What is the difference between a minority and a coalition government?

Key term

How does the electoral system affect the type of government formed?

Questions from this subtopic

Each one with the model answer underneath.

1
Why are different electoral systems used for different elections in the UK?
Model answer
Devolution and reform introduced more proportional systems for devolved bodies, while Westminster retained FPTP — reflecting different aims (proportionality vs decisive single-party government).
2
How does the electoral system affect the type of government formed?
Model answer
FPTP tends to produce single-party majority governments; proportional systems (AMS, STV) tend to produce coalition or minority governments.
3
How does FPTP affect party representation?
Model answer
It over-rewards larger parties and parties with concentrated support, and under-represents smaller parties whose vote is spread thinly across constituencies.
4
How do proportional systems affect voter choice?
Model answer
They allow voters to support smaller parties without "wasting" their vote, widening effective choice and encouraging multi-party competition.
5
What is a "safe seat" and which system produces many of them?
Model answer
A constituency a party is almost certain to win at every election; FPTP produces many safe seats, reducing the impact of many voters.
6
What is a "marginal seat"?
Model answer
A constituency where the leading parties are close, so it can change hands — marginals attract disproportionate campaign attention under FPTP.

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ACitizens elect representatives to govern on their behalf.

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