An Enriched Model of Strategic Voting under Uncertainty

Henri Surugue; Sébastien Destercke

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arXiv · 2605.15786

An Enriched Model of Strategic Voting under Uncertainty

Henri Surugue·Sébastien Destercke

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Abstract

We present a new strategic voting model where we use uncertainty representation to model preferences. Specifically, we use probability sets as uncertainty representations, together with lower and upper expected utility gains to take strategic decisions. Focusing on belief functions in particular, we demonstrate that this very expressive model includes in one sweep many existing models based on probabilities, sets or incomplete preferences. Additionally, we generalize several well-known convergence results from the literature to this broader representational setting. Furthermore, we illustrate how this model can capture more realistic scenarios for practical applications but also raises theoretical challenges.

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Henri Surugue, Sébastien Destercke. 2026-05-15. An Enriched Model of Strategic Voting under Uncertainty. https://arxiv.org/abs/2605.15786

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