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The term is named for early Massachusetts governor Elbridge Gerry. In 1812, the Massachusetts legislature redrew legislative district lines to favor the Jeffersonian Republican party candidates. Two reporters were looking at the new election map and one commented that one of the new districts looked just like a salamander. The other retorted that it looked like a Gerry-mander. The name stuck and is now used by political scientists everywhere.
While Elbridge Gerry pronounced his name with a hard G as in "gate", the word "gerrymander" is usually pronounced with a soft G, as in "gestate".
Gerrymandering is most effective in electoral systems with districts that elect a single representative, which include first-past-the-post, or single-member district and plurality, electoral systems, and majority run-off, or single-member district and majority, electoral systems. Gerrymandering is possible, however, in any electoral system with multiple electoral districts. Among western democracies, only Israel and the Netherlands have electoral systems with only one (nationwide) electoral district.
One form of gerrymandering occurs when the boundaries of a constituency are changed in order to eliminate some area with a high concentration of people who vote in a similar way (e.g., for a certain political party). Another form occurs when an area with a high concentration of similar voters is split among several districts, ensuring that the party has a small majority in several districts rather than a large majority in one. A converse method is to draw boundaries so that a group opposing those manipulating the boundaries are concentrated in as few areas as possible, so as to minimise their representation and influence. Often, such gerrymandering is held to redress a long-overlooked imbalance, as when creating a black majority district.
Many electoral reform packages advocate fixed or neutrally defined district borders to eliminate this manipulation. One such scheme of neutrally defined district borders is bioregional democracyBioregional democracy (or the Bioregional State is a set of Electoral Reforms designed to force the political process in a democracy to better represent body and environment concerns, e. water quality. This movement is variously called bioregional democra which follows the borders of terrestrial ecoregions as defined by ecologyEcology is the branch of science that studies the distribution and abundance of living organisms, and the interactions between organisms and their environment. The environment of an organism includes both its physical habitat, which can be described as th. Presumably, scientific criteria would be immune to politically motivated manipulation, although of course this is debatable as scientists are people with political interests too.
The problem with geographically static districting systems (which is not what most reform packages suggest) is that they do not take in to account changes in population, meaning that individual electors can grow to have vastly different degrees of influence on the legislative process. This is particularly a problem during times of large population movements, and was especially prominent in the United KingdomThe United Kingdom of Great Britain and Northern Ireland is a state in Western Europe, usually known simply as the United Kingdom the UK Britain or less accurately as Great Britain . The UK was formed by a series of Acts of Union which united the formerly during the industrial revolution. See also Reform ActIn the United Kingdom, the Reform Act could refer to various Acts Reform Act of 1832 (The "First Reform Act" or "The Great Reform Act"), which abolished rotten boroughs and gave representation to previously unrepresented urban areas like Birmingham etc. and rotten boroughThe term rotten borough (or pocket borough as they were seen as being "in the pocket" of a patron) refers to a parliamentary borough or constituency in the Kingdom of England (pre-1707), the Kingdom of Great Britain (1707-1801), the Kingdom of Ireland (15.
For this reason, scientists have proposed algorithmFlowcharts were often used to represent algorithms. An algorithm is a finite set of well-defined instructions for accomplishing some task which, given an initial state, will result in a corresponding recognisable end-state (contrast with heuristic). Algoric ways of dividing constituencies. Desirable criteria for the outcomes are:
Gerrymandering is also possible in multi-member electoral systems, but generally the drawing of boundaries are only effective at determining which party wins the last seat in a close contest.