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Efficiency gap - Wikipedia

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The efficiency gap is a measure to determine the fairness of electoral districts for first-past-the-post voting with a two-party system. It measures which political party had the most wasted votes (and by how much). It has notably been used to inform debates around gerrymandering in the United States. The efficiency gap is defined as the difference between the two major U.S. political parties' wasted votes (votes which did not receive representation as a result of the election), divided by the total number of votes.[1][2] The efficiency gap was first devised by University of Chicago law professor Nicholas Stephanopoulos and political scientist Eric McGhee in 2014.[3] The metric has notably been used to quantitatively assess the effect of gerrymandering, the assigning of voters to electoral districts in such a way as to increase the number of districts won by one political party at the expense of another.[1][4] Stephanopoulos and McGhee argued that in a non-partisan redistricting with t

Efficiency gap - Wikipedia Jump to content From Wikipedia, the free encyclopedia Measure of the fairness of electoral districts The efficiency gap is a measure to determine the fairness of electoral districts for first-past-the-post voting with a two-party system . It measures which political party had the most wasted votes (and by how much). It has notably been used to inform debates around gerrymandering in the United States. Equation [ edit ] The efficiency gap is defined as the difference between the two major U.S. political parties' wasted votes (votes which did not receive representation

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