Talk:Dual-member mixed proportional

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	This article was accepted from this draft on 24 June 2016 by reviewer SwisterTwister (talk · contribs).

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Dual-member mixed proportional representation and Electoral Reform in Prince Edward Island

The report of the Special Committee on Democratic Renewal in Prince Edward Island contains only a very general definition for dual-member mixed proportional representation (two seats per district; one seat goes the plurality winner; the other seat is used to achieve a proportional result on the province level). But this Wikipedia article contains a very detailed description.

Suppose the Islanders vote for dual-member mixed proportional representation in the referendum in November 2016. Do they vote for the general definition? Or do they vote for the concrete proposal by Sean Graham? Markus Schulze 17:06, 4 June 2016 (UTC)[reply]

Good question Markus. Elections PEI is yet to publish their educational materials for the plebiscite (which are in production), so I don't have a sharable link for this yet, but from my meetings with them, it is indeed the concrete proposal by Sean Graham that would be introduced, with 14 districts (so 28 MLAs, compared to the current 27), should DMP win the November plebiscite. I'll add the link to the article once those materials from Elections PEI are published. AnnaCK (talk) 14:46, 24 June 2016 (UTC)[reply]

Merge parts into Biproportional Representation

Parts of this article should be split off and moved into biproportional apportionment (the more common term for this system). –Maximum Limelihood Estimator 03:52, 3 May 2024 (UTC)[reply]

I don't think so. It is a form of biproportional system, but also a mixed one. Rankedchoicevoter (talk) 09:05, 9 September 2024 (UTC)[reply]

Yeah, I've learned more about mixed systems and I was incorrectly conflating biproportional representation in general with localized lists. Or at least, I think so? The issue is I can't find a paper using the term "localized list". The system it's describing definitely exists, and is being used in Germany now. The problem is that the only common terms I can find for similar systems are "best runner-up" or "dual-member", which refer to variants where the first seat always goes to the candidate with the most votes. That doesn't have to be the case (and isn't the case in Germany). – Closed Limelike Curves (talk) 17:52, 9 September 2024 (UTC)[reply]

DMP and MMP

Some parts of the article clearly state that DMP is a variant of MMP, which I think is a good way of writing it both for classification and didactically. It is basically MMP with compensatory seats locally, it's also in the original name: dual-member mixed proportional. It also makes comparisons to other variants of MMP, like the best losers and one vote MMP.

MMP is a more general principle of representation, many systems are said to be MMP, for better or worse even some that fit the label much less than DMP. I think the confusion stems from the referendums in Canada which offered MMP vs DMP vs RUP vs STV etc. Terminology here should be more precise, saying "two tier versions of MMP", "more common variants of MMP", "two-vote MMP" etc.

The article could also use some comparisons to biproportional systems, and "advantages and disadvantages" could be made to be a bit more neutral tone, it looks like it was lifted from somewhere. Also, comparison should not be made just to more common two-tier MMP systems, but they could certainly stay highlighted.

I would also highlight the at first glance confusingly similar binomial system, since that is also "dual-member proportional" in some sense. Rankedchoicevoter (talk) 11:17, 11 September 2024 (UTC)[reply]

Somone with a deeper understanding of DMP, please help

The current description in the article doesn't really fit wikipedia, it looks like it was just copied from elsewhere. It is also very confusing, it should be rewritten in a way that is clear when in treats the votes as a local list vote (to compensate with) and when it just operates with intra party rankings (to decide which candidates get elected). Rankedchoicevoter (talk) 07:16, 17 September 2024 (UTC)[reply]