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additional

The additional member system (AMS), also known as mixed-member proportional representation (MMP) outside the United Kingdom, is a mixed electoral system with one tier of single-member district representatives, and another tier of "additional members" elected to make the overall election results more proportional. While virtually identical to MMP in every other regard, AMS differs from MMP in that AMS does not compensate for the disproportionate results caused by overhang seats (i.e. the legislature is a fixed size under AMS whereas it may vary under MMP).
The term additional member system, introduced by the Hansard Society, has been largely replaced in the literature by the term mixed member proportional coined by New Zealand's Royal Commission on the Electoral System (1984–1986). This article focuses primarily on semi-proportional implementations of MMP used in the UK.

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  1. V

    Additional rad not getting hot

    Well hello everyone, my first post so please be gentle with me.....I'm not a real plumber, but I'm practical.... I have just fitted a large double panel rad in my conservatory, teed in and fed from an existing rad in a utility room about 10 feet away, the house is about 15 years old and the rads...
    • Vanpeeman
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    • Forum: Plumbing Jobs | The Job-board
  2. D

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  3. J

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  4. H

    Gas course

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  5. M

    Fitting additional expansion vessel

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    • Forum: Plumbing Jobs | The Job-board
  6. D

    Additional Stop Taps

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  7. H

    Looking for some additional (top draw) capacity

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  8. A

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  9. R

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  10. R

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  11. R

    Extract n air brick

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  12. K

    kevgas

    where would be the best position to site a secondary pump to aid circulation in a sealed system
  13. M

    WFitting wall tap

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  14. J

    additional coments sheet for a boiler service gas portfolio

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  15. S

    Fitting additional feed to round cold water tank

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    • Surfjayce
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    • Forum: Plumbing Jobs | The Job-board
  16. A

    Connecting Additional toilet (saniflow) to existing waste pipe from inside

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    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  17. H

    Additional courses

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  18. M

    additional expansion vessel on a combi system

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    • manx12
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    • Forum: Plumbing Jobs | The Job-board
  19. K

    Additional Radiator: 10 or 15mm?

    Hi All, Could do with a bit of advice, I've got one of those jobs I'd rather not have to do :( I have to fit a radiator in a dining room extension, sized by heat loss calculation a 1200W rad is going in with TRV. The house is 15 years old and has an open-vented system with Y-plan valve and...
    • KitchenTim
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