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Effective risk aversion in thin risk-sharing markets

Anthropelos, Michail, Kardaras, Constantinos and Vichos, Georgios (2019) Effective risk aversion in thin risk-sharing markets. Mathematical Finance. ISSN 0960-1627

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Abstract

We consider thin incomplete financial markets, where traders with heterogeneous pref- erences and risk exposures have motive to behave strategically regarding the demand schedules they submit, thereby impacting prices and allocations. We argue that traders relatively more exposed to market risk tend to submit more elastic demand functions. Noncompetitive equilibrium prices and allocations result as an outcome of a game among traders. General sufficient conditions for existence and uniqueness of such equilibrium are provided, with an extensive analysis of two-trader transactions. Even though strategic behaviour causes inefficient social allocations, traders with sufficiently high risk tolerance and/or large initial exposure to market risk obtain more utility gain in the noncompetitive equilibrium, when compared to the competitive one.

Item Type: Article
Divisions: Statistics
Subjects: Q Science > QA Mathematics
Date Deposited: 30 Oct 2019 10:21
Last Modified: 18 Jan 2020 00:32
URI: http://eprints.lse.ac.uk/id/eprint/102275

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