RT info:eu-repo/semantics/article T1 Measuring consensus and voter influence in ternary preferences A1 Albano, Alessandro A1 García Lapresta, José Luis A1 Plaia, Antonella A1 Sciandra, Mariangela K1 Ternary preferences K1 Banzhaf value K1 Preferencias ternarias K1 Valor de Banzhaf K1 5308 Economía General AB This paper explores the concept of consensus in the context of ternary preferences, an extension of dichotomous preference approvals, where alternatives are classified into three categories: acceptable, neutral, and unacceptable.We propose a novel distance-based measure to quantify consensus among voters and introduce a method for calculating the marginal contribution of each voter to the overall consensus, drawing parallels to the Banzhaf value in cooperative game theory. To handle large voter groups, we also present an estimation procedure based on sampling techniques to derive the marginal contributions. We performed comprehensive simulation studies to validate the statistical properties and computational efficiency of the proposed approach. Finally, empirical analyses using data from the Italian National Institute of Statistics (ISTAT) and the Balkan Barometer highlight its practical applicability. PB Elsevier SN 0377-2217 YR 2025 FD 2025 LK https://uvadoc.uva.es/handle/10324/80933 UL https://uvadoc.uva.es/handle/10324/80933 LA eng NO European Journal of Operational Research, 2025 In Press. NO Producción Científica DS UVaDOC RD 14-ene-2026