Confidence, pessimism and their impact on product differentiation in a hotelling model with demand location uncertainty

Florian Kauffeldt and Boris Wiesenfarth

We analyze a Hotelling location-then-price duopoly game under demand uncertainty with uniformly distributed consumers in a standard quadratic costs scenario. The novelty of our approach consists of assuming that firms' beliefs are represented by non-extreme-outcome-additive (neo-additive) capacities. We derive firms' subgame-perfect product design decisions under ambiguity. Furthermore, we investigate the influence of ambiguity and ambiguity attitude on equilibrium product differentiation and contrast our results with an environment of risky firms. We find that the impact of the degree of confidence or ambiguity is particularly significant when it comes to delivering accurate explanations for a wide range of phenomena related to observed product design behavior.

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Year of publication:	April 16, 2014
Authors:	Kauffeldt, Florian ; Wiesenfarth, Boris Roland
Publisher:	Heidelberg : Univ., Dep. of Economics Heidelberg : Universitätsbibliothek der Universität Heidelberg
Subject:	Hotelling \| Confidence \| Optimism \| Pessimism \| Degree of Ambiguity \| Choquet Expected Utility \| Neo-additive Capacities \| Product Differentiation \| Entscheidung unter Unsicherheit \| Decision under uncertainty \| Produktdifferenzierung \| Product differentiation \| Theorie \| Theory \| Erwartungsnutzen \| Expected utility \| Hotelling-Modell \| Hotelling model \| Hotellerie \| Hotel industry \| Risiko \| Risk \| Vertrauen