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Election Methods and Collective Decisions

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This paper presents some simulation results on various collective decision methods in the context of Downsian proximity electorates. I show why these results are less than ideal, and contrast these different voting systems with a new system called Serial Approval Vote Elections (SAVE), which produces better outcomes that approach the ideal represented by the median voter theorem. I show how SAVE works in both normal and unusual electorates, how SAVE can be easily integrated into committee procedures, and how SAVE can be used in larger elections.


  • Collective decisions
  • Voting methods
  • Median voter theorem
  • Arrow’s impossibility theorem
  • Serial approval vote elections

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  • DOI: 10.1007/978-3-319-96661-8_13
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Fig. 1.


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Correspondence to Thomas Edward Cavin .

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Cavin, T.E. (2018). Election Methods and Collective Decisions. In: Morales, A., Gershenson, C., Braha, D., Minai, A., Bar-Yam, Y. (eds) Unifying Themes in Complex Systems IX. ICCS 2018. Springer Proceedings in Complexity. Springer, Cham.

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