Expert Classification Aggregation
Theoretical Economics
2025-02-07 v2
Abstract
We consider the problem where a set of individuals has to classify objects into categories by aggregating the individual classifications, and no category can be left empty. An aggregator satisfies \emph{Expertise} if individuals are decisive either over the classification of a given object, or the classification into a given category. We show that requiring an aggregator to satisfy \emph{Expertise} (or variants of it) and be either unanimous or independent leads to numerous impossibility results.
Keywords
Cite
@article{arxiv.2409.11033,
title = {Expert Classification Aggregation},
author = {Federico Fioravanti},
journal= {arXiv preprint arXiv:2409.11033},
year = {2025}
}