Unit 4: Political Actors and Processes

Table of Contents

1. Political Party Systems

Political parties are the primary vehicles for organizing public opinion and contesting power. The nature of the party system often depends on the electoral rules of the country.

A. Britain: Two-Party Dominance

Although Britain has many parties, its system is described as a Two-Party System because power usually rotates between two major parties:

B. Brazil: Multiparty Fragmentation

Brazil has an Extremely Fragmented Multiparty System. It is common to have dozens of parties represented in the National Congress.

2. Pressure Groups and Interest Groups

Pressure groups (also called Interest Groups) do not contest elections but seek to influence government policy from the outside.

Britain: Pluralist Lobbying

Brazil: Corporatism and Social Movements

3. Electoral Systems: FPTP vs. Proportional Representation

The "rules of the game" determine how votes are converted into seats, which in turn determines the type of party system that emerges.

A. First Past The Post (FPTP) - Britain

Used for the House of Commons. The candidate with the most votes in a constituency wins, even if they don't have a majority (50%+).

B. Proportional Representation (PR) - Brazil

Used for the Chamber of Deputies. Seats are assigned to parties in proportion to the total number of votes they receive.

4. Comparison: Britain vs. Brazil

Feature Britain (UK) Brazil
Party System Two-Party Dominant Highly Fragmented Multiparty
Electoral System First Past the Post (FPTP) Proportional Representation (PR)
Gov. Formation Single Party (usually) Coalition Presidentialism
Pressure Groups Established Lobbying Strong Grassroots Movements

5. Exam Focus: Tips and FAQs

Exam Tips

  • Duverger's Law: Mention this! It states that FPTP systems tend to lead to two-party systems, while PR leads to multiparty systems.
  • Coalition Presidentialism: This is a key term for Brazil. It explains why a President with a personal mandate can still be "weak" if they can't manage the many parties in Congress.
  • Hung Parliament: Define this when discussing the UK—a situation where no single party wins a majority of seats.

Frequently Asked Questions

Q: Why is Brazil's party system so fragmented?
A: Mainly because of the Proportional Representation system and the ease with which politicians can switch parties (party infidelity).

Q: What is the main role of pressure groups in the UK?
A: They provide expert information to civil servants and MPs, and they mobilize public opinion to influence specific policy changes.


End of Unit 4 Notes | Prepared for DSM 351 | Knowlet