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Additional Member System (AMS) Electoral System Simplified Revision Notes

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AMS Electoral System

Description of AMS:

  • Definition: The Additional Member System (AMS) is a hybrid electoral system used in the Scottish Parliament elections.
  • Proportional Representation: Aims to ensure the overall number of Members of the Scottish Parliament (MSPs) for each party is proportionate to their electoral support.

How AMS Works:

  • Two Votes: Voters cast two votes - one for a constituency MSP and one for a party on a regional list.
  • Constituency MSPs: Elected using the First Past the Post system (73 constituency MSPs).
  • Regional MSPs: Selected from party lists in eight regions, adding seven additional MSPs to each.

Advantages of AMS:

  • The percentage of seats reflects the percentage of votes received, enhancing fairness.
  • Example: The second vote contributes to proportional allocation.
  • No votes are 'wasted'; the second vote provides an alternative representation chance.
  • Example: Even if the first-choice candidate isn't elected, the second vote ensures representation.
  • Easier election of women and minorities if parties prioritise them on regional lists.
  • Example: A diverse range of MSPs in regions offers varied representation.

Disadvantages of AMS:

  • Not fully proportional; parties may be under-represented or over-represented.
  • Example: In 2021, Liberal Democrats got 6% of votes but only 3% of seats.
  • Parties control lists; voters don't directly choose representatives.
  • Example: Parties hold considerable power in candidate selection.

Elections to the UK Parliament: AMS Electoral System

  • Higher likelihood of coalition governments or power-sharing agreements.
  • Example: Past instances of Labour/Liberal Democrat coalitions (1999-2003, 2003-07) and SNP/Greens in 2021.
  • Challenges with spoilt ballots and voter confusion over the second ballot paper.
  • Example: Some voters are uncertain about which MSP (list or constituency) to contact.

Importance for Modern Studies:

  • Understanding AMS's impact on proportionality and representation is crucial for informed civic engagement.
  • Consideration of advantages and disadvantages contributes to discussions on electoral systems.

Conclusion:

The Additional Member System (AMS) seeks to balance proportionality and representation. While it addresses certain democratic and proportional concerns, issues such as party control over lists and potential confusion for voters underscore the ongoing debate around the system's efficacy.

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