FEEM working papers "Note di lavoro" series
2012 .004

Ambiguous Aggregation of Expert Opinions: The Case of Optimal R&D Investment


Autori: Stergios Athanassoglou, Valentina Bosetti, Gauthier de Maere d'Aertrycke
Serie: Climate Change and Sustainable Development
Editor: Carlo Carraro
Tipo: Journal
Parole chiave: Aggregation, Ambiguity, R&D, Expert Opinions, Convex/Conic Optimization
Numero JEL: C61, D81, Q42
JEL: Environmental and Resource Economics
Pagine: Volume 61, Issue 4, pp 497-516
Data: 08/2015

Abstract

How should a decision-maker allocate R&D funds when a group of experts provides divergent estimates on a technology's potential effectiveness? To address this question, we propose a simple decision-theoretic framework that takes into account ambiguity over the aggregation of expert opinion and a decision-maker's attitude towards it. In line with the paper's focus on R&D investment, decision variables in our model may affect experts' subjective probability distributions of the future potential of a technology. Using results from convex optimization, we are able to establish a number of analytical results including a closed-form expression of our model's value function, as well as a thorough investigation of its differentiability properties. We apply our framework to original data from a recent expert elicitation survey on solar technology. The analysis suggests that more aggressive investment in solar technology R&D is likely to yield significant dividends even, or rather especially, after taking ambiguous aggregation into account.

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Suggested citation: Stergios Athanassoglou, Valentina Bosetti, Setting Environmental Policy When Experts Disagree, Environmental and Resource Economics, August 2015, Volume 61, Issue 4, pp 497-516, http://rd.springer.com/article/10.1007%2Fs10640-014-9804-x

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