Consensus Seeking: How Juror Exclusion Shapes Strategic Incentives in the Borda Count

We examine incentives and strategic behavior in a voting game using a new modification of the Borda count in which the score of the juror with the largest deviation from the mean score vector is excluded. We show that introducing juror exclusion has a strong effect on incentives. In particular, it motivates jurors to align with the mean. When jurors' preferences are closely aligned - that is, when the subjective component of the evaluation is small relative to the objective one - excluding the outlier's score is likely to reduce manipulation. However, when jurors' preferences differ significantly, the method may actually increase misreporting compared to the standard Borda count without juror exclusion.

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Publication Details

Journal
Central European Journal of Economic Modelling and Econometrics
Published
2025-10-09
DOI
https://doi.org/10.24425/cejeme.2025.156672
Primary Topic
Law, Economics, and Judicial Systems
Type
article
Field-Weighted Citation Impact
0.00
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article

Consensus Seeking: How Juror Exclusion Shapes Strategic Incentives in the Borda Count

Michał Lewandowski, Joanna Franaszek
Central European Journal of Economic Modelling and Econometrics
Law, Economics, and Judicial Systems
article

Consensus Seeking: How Juror Exclusion Shapes Strategic Incentives in the Borda Count

Michał Lewandowski, Joanna Franaszek
article en

Abstract

We examine incentives and strategic behavior in a voting game using a new modification of the Borda count in which the score of the juror with the largest deviation from the mean score vector is excluded. We show that introducing juror exclusion has a strong effect on incentives. In particular, it motivates jurors to align with the mean. When jurors' preferences are closely aligned - that is, when the subjective component of the evaluation is small relative to the objective one - excluding the outlier's score is likely to reduce manipulation. However, when jurors' preferences differ significantly, the method may actually increase misreporting compared to the standard Borda count without juror exclusion.

Central European Journal of Economic Modelling and Econometrics
SGH Warsaw School of Economics (PL)
Openalex Percentile: Top 63%
Law, Economics, and Judicial Systems
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