Depends upon the system. National list yes, that's how it's designed. At the other end, STV, no.
My own feeling about milti-member constituencys is they risk conflict between the representatives. They can end up competing with each other instead of looking after the interests of the constituents. Moreover, a lazy or incompetent representatives can hide behind the achievements of a good one.
But in any case, I see no advantage. DRPV risks giving victory to someone with relatively small support on equal footing with another with huge support.
I disagree that it does. It literally does the opposite.
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Say you have 2 constituency, metro and island. Metro has 60k registered voters who all vote. Island has 40k registers voters of which only half vote.
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Under STV, metro and island would have 1 MP each. The metro MP (red party) won in the first round with a landslide of 50k votes. The island MP (blue party) also won in the 1st round with 10.1k votes.
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Say red and blue MP's are opposed on all matters i.e. the metro MP's vote in parliament would be cancelled by the island MPs.
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Despite STV, the metro MP who represents 50k metro voters is cancelled by the island MP who only 10.1k people voted for.
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Under DRPV, the metro MPs have 40k (red) and 10k (blue) whilst island would have 10.1k (blue) and 9.9k (red)
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So on national matters metro would vote 30k in favour of red (40k - 10k) whilst island would vote 0.2k blue (10.1k - 9.9k).
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That would seem fairer than the one MP one vote system.
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Now assume there was an issue where the island MP's agreed, say a ferry tax. In that case if they both voted against (the blue voting against his party line) the tax the island constituency would have 20k votes against the tax.
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Furthermore if the metro blue MP decided to work hard to broaden his appeal and maybe poach a few red voters, he might go from 50/10 split to a 30/20. This will still be worth doing as it would increase his power. Under STV or FPTP, why would he bother, even converting 10k voters and doubling his vote wouldn't help.
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similarly , if one or both of the island MPs decided to try to increase the turnout that would be good, even if the ratio remained the same as, if the voted together (40k potentially), they could outweigh a split metro constituency.
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The way I see it, DRPV encourages candidates to broaden their appeal, increase turnout and work together.