Monday, 18 April 2011

Thoughts on AV

It certainly seems more complicated than FPTP to me. Imagine the first choices cast as follows: Tory candidate on 49%, Labour on 40%, Lib Dem on 9%, and BNP on 2%. Two possible contrived scenarios:
  1. All BNP voters put Tory as their 2nd choice. Their first choice is deleted, so Tories now get bumped up to their first preference. Tories are now on 51% and win.
  2. All BNP voters put Labour as their 2nd choice. The result after the first round is now: 49% Tory, 42% Labour, Lib Dem 9%. The Lib Dems are now last, and get eliminated. All Lib Dems put Labour as their second choice. Now we have Tories on 49%, Labour on 51%. Labour win.
In each case, BNP decided the outcome. Now I know a small number of voters can decide the outcome in FPTP, that isn't new. In other scenarios, I think order of elimination can affect the outcome of the election. What are the pros and cons of this? It is a complex system. The person with the most first choices may not necessarily win, but can someone get more than 50% despite more than 50% of people not wanting them? I think the answer is no unless you force people to rank everyone, then you artificially say that someone 'approves' in some way of one candidate even if they were their last choice.

If you want to vote tactically, what should your strategy be? I'm not sure if this is clear. In the case one really doesn't want a particular candidate to win, is it clear one should not rank them instead of ranking them last? But then that would only matter if the first choice is likely to get eliminated.

I'm not sure a complex system is a great idea. We want transparency because otherwise people can dress up stupid arguments using the complexity as a justification. For instance, if the BNP does decide any results under AV, does this raise their profile and increase the likelihood of legislation to deal with legal but highly distasteful parties? Or if people are confused by an outcome, will this turn them off politics?

At the end of the day, it only changes the way votes in a constituency are counted. It's not going to make your vote count if you don't live in a marginal constituency. I don't know if it makes it harder for a politician to win, and I find it unconvincing rhetoric that the winner needs 50% - well yes, because of the way the votes are counted.

I'm not sure how it will affect small parties either. With FPTP people are reluctant to vote for a small party because they don't want to waste their vote. I suppose this is understandable. With AV, they can vote for the parties of their hearts, heads, and wallets in whichever order they like. This might be a good thing, but if one of those choices is a small party, they're almost certainly still not going to win, and their vote transfers to one of the big parties, who might then not need to worry about little parties costing them the election. Small parties hope to influence the bigger parties policies rather than to win elections, and I have no idea how AV will affect this.

I'd like to vote for whatever's going to make people freer and politicians less important. Is that AV or FPTP?

P.S. What's happened to the right to recall? That would surely keep politicians on their toes a bit more?

2 comments:

  1. Or, what happens under FPTP - Lib Dems realise it's a two horse race so the all vote Labour. Then BNP voters realise it's a two horse as well, so they decide the outcome of the election.

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  2. Since nobody knows the outcome of the election in advance, no voter has any more influence than any other, so you might as well say it is decided by voters who have Labradors, if the winning margin is smaller than the number of Labrador owners.

    I can't see how AV's share of crazy outcomes is any worse or better than FPTP's.

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