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Voting systems for environmental decisions.

Mark A Burgman1, Helen M Regan, Lynn A Maguire

  • 1Centre of Excellence for Biosecurity Risk Analysis, School of Botany, University of Melbourne, Parkville, 3010, Australia. markab@unimelb.edu.au.

Conservation Biology : the Journal of the Society for Conservation Biology
|January 16, 2014
PubMed
Summary
This summary is machine-generated.

No single voting system is perfect for conservation decisions. Different methods have flaws and can be manipulated, so transparency in voting system design is crucial for group decision-making.

Keywords:
Arrow's theoremFilosofíadecision theoryphilosophypreferencespreferenciasteorema de Arrowteoría de decisión

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Area of Science:

  • Environmental science
  • Decision science
  • Political science

Background:

  • Voting systems are frequently employed to aggregate preferences for conservation priority setting.
  • Key desirable voting system characteristics include transitivity, completeness, and Pareto optimality.
  • Commonly considered methods for environmental decision-making include simple majority, approval, and preferential voting.

Purpose of the Study:

  • To evaluate the inherent limitations and potential for manipulation in various voting systems used for conservation.
  • To highlight the challenges in selecting a universally optimal voting system for complex environmental decisions.
  • To advocate for transparency and participant approval of voting system methodologies.

Main Methods:

  • Analysis of theoretical properties of voting systems (transitivity, completeness, Pareto optimality).
  • Examination of potential manipulation strategies in voting scenarios with multiple criteria and alternatives.
  • Review of common voting systems (simple majority, approval, preferential) in the context of environmental management.

Main Results:

  • No voting system can simultaneously satisfy all desirable performance criteria.
  • Voting methods are susceptible to manipulation by informed decision-makers and strategic voters.
  • Complex decision-making environments with multiple criteria and alternatives exacerbate voting system flaws.

Conclusions:

  • All common voting systems possess inherent flaws and limitations.
  • The potential for manipulation necessitates careful consideration of voting system design.
  • Transparency regarding voting system properties and participant consensus on the chosen method are recommended for effective group decision-making in conservation.