Optimal Legislative County Clustering in North Carolina

dc.contributor.author

Carter, D

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Hunter, Z

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Teague, D

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Herschlag, G

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Mattingly, J

dc.date.accessioned

2019-09-17T12:12:06Z

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2019-09-17T12:12:06Z

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2019-09-17T12:12:04Z

dc.description.abstract

North Carolina's constitution requires that state legislative districts should not split counties. However, counties must be split to comply with the "one person, one vote" mandate of the U.S. Supreme Court. Given that counties must be split, the North Carolina legislature and courts have provided guidelines that seek to reduce counties split across districts while also complying with the "one person, one vote" criteria. Under these guidelines, the counties are separated into clusters. The primary goal of this work is to develop, present, and publicly release an algorithm to optimally cluster counties according to the guidelines set by the court in 2015. We use this tool to investigate the optimality and uniqueness of the enacted clusters under the 2017 redistricting process. We verify that the enacted clusters are optimal, but find other optimal choices. We emphasize that the tool we provide lists \textit{all} possible optimal county clusterings. We also explore the stability of clustering under changing statewide populations and project what the county clusters may look like in the next redistricting cycle beginning in 2020/2021.

dc.identifier.uri

https://hdl.handle.net/10161/19316

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Informa UK Limited

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cs.CY

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cs.CY

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cs.SI

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physics.soc-ph

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47N10, 97P70

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Optimal Legislative County Clustering in North Carolina

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Journal article

duke.contributor.orcid

Herschlag, G|0000-0001-5443-6449

duke.contributor.orcid

Mattingly, J|0000-0002-1819-729X

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.organisational-group

Duke

pubs.organisational-group

Mathematics

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