Dynamic adjustment: an electoral method for relaxed double proportionality

Svante Linusson () and Gustav Ryd ()

Annals of Operations Research, 2014, vol. 215, issue 1, 183-199

Abstract: We describe an electoral system for distributing seats in a parliament. It gives proportionality for the political parties and close to proportionality for constituencies. The system suggested here is a version of the system used in Sweden and other Nordic countries with permanent seats in each constituency and adjustment seats to give proportionality on the national level. In the national election of 2010 the current Swedish system failed to give proportionality between parties. We examine here one possible cure for this unwanted behavior. The main difference compared to the current Swedish system is that the number of adjustment seats is not fixed, but rather dynamically determined to be as low as possible and still insure proportionality between parties. Copyright Springer Science+Business Media New York 2014

Date: 2014
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DOI: 10.1007/s10479-013-1484-3

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