Aggregation of Ordinal Judgements Based on Condorcet's Majority Rule

This paper deals with the aggregation of ordinal judgements using Condorcet’s majority rule. Since this rule achieves not necessarily a transitive relation, some authors formulate appropriate constraints to avoid this disadvantage. But also certain distance functions assigning appropriate dissimilarity values to pairs of relations lead to the majority rule with constraints. In comparison with Borda’s scoring method, which directly generates an aggregation being a complete preorder, the results are sometimes different.