Journal
SOCIO-ECONOMIC PLANNING SCIENCES
Volume 79, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.seps.2021.101099
Keywords
Presidential primary elections; Scheduling; Clustering; Integer programming
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In this article, we present and solve a model for the grouping and ordering of state primary elections in a U.S. presidential election cycle. Our model takes into account the attributes of each state, prioritizing states that closely align with the voting and demographic profiles of the entire country. The model clusters states into primary dates to evenly distribute the electorate over the primary season. Additionally, it considers proximity to optimize political campaign efforts. We highlight two solutions that improve upon the status quo by prioritizing states with attributes similar to the national profile and achieving a better geographic grouping and spread of voters.
In this article we formulate and solve a model for choosing the grouping and ordering of state primary elections for a United States presidential election cycle. Our work fills a gap in the existing literature by defining a reproducible procedure for deriving an entire schedule of U.S. primary elections in a way that meets quantifiable goals of efficiency, equity, and effectiveness. Our model considers each state's attributes and gives higher priority to states whose voting and demographic profiles more closely reflect those of the county as a whole. It also clusters states into primary dates in a way that spreads the electorate relatively evenly over the primary season. Finally, the clustering process takes proximity into account, so that political campaigns can focus more effectively on a particular region without incurring excessive travel time. Since these criteria may conflict, the preferred ordering depends on the tradeoffs made among the goals. We highlight two solutions in which states with voting and demographic attributes close to those of the national profile are scheduled early on, while the geographic grouping and spread of voters over the schedule are significantly better than those of the status quo.
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