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I.VW Research Seminar – Antoine Bommier, ETH Zürich

Disagreement Aversion

Experts often disagree. A decision-maker may be averse to such expert disagreement. Existing models of aversion to expert disagreement rest on ambiguity-averse preferences adopting a unanimity principle: If all experts consider one choice better than another, so should the decision-maker. Such unanimity among experts, however, can be spurious, masking substantial dis-agreement on the underlying reasons. We introduce a novel notion of disagree-ment aversion to distinguish spurious from genuine unanimity and develop a model that can capture disagreement aversion in our sense. The central ele-ment of our model is the cautious aggregation of experts’ beliefs.

If you have questions please contact
Prof. Dr. Anastasia Kartasheva
Tel.: +41 71 224 79 95
E-Mail:

24. November 2022

Location: Online via Zoom

Date: 24.11.2022, 16:00 bis 17:00