Single-member district: Difference between revisions
District Allocation
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{{Wikipedia}}
A '''single-member district''' (SMD) or '''single-member constituency''' is an [[w:electoral district|electoral district]] that returns one officeholder to a body with multiple members such as a [[w:legislature|legislature]]. This is also sometimes called '''single-winner voting''' or '''winner takes all'''. The alternatives are [[Multi-Member System|multi-member district]]s, or the election of a body by the whole electorate voting as one constituency (i.e. [[proportional representation]]).
Single Member systems, also called Single Winner systems, elect a single winner. These can be combined into many single member systems run independently in districts to form a [[Regional System]]. ▼
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* [[Plurality Voting]]: A valid vote can choose only one candidate▼
They can be sub-classified by different ways to aggregate the ballots. ▼
There are two two key factors in single member representation: how the members are chosen (the voting method) and how the districts are drawn.
==District Allocation==
In most SMD systems, districts are divided by units of population, by administrative subregions, or other metrics to equalize representation (in theory).
==Popular [[Single Member systems]]==▼
The process of changing the SMD boundaries is called '''redistricting'''. Changing districts for partisan gain is called [[Gerrymandering|'''gerrymandering''']].
** [[Single Member Plurality]]
** [[Random ballot]]
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; Automatic Truncation Line Option (ATLO) : A voter may mark a line in his/her ranking, meaning that if no one above the line wins, then that voter wants to drop from his/her ranking all of his/her below-line candidates and have a recount. (In pairwise-count methods the dropping only takes place if, additionally, there's a circular tie containing above-line and below-line candidates).
[[Category:Types of representation]]
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