The Four Regions in Settlement Space: A Game-Theoretical Approach to Investment Treaty Arbitration Part I: Modelling

Collins, D. A., Broom, M., Thomas, P. & Vu, T.H. (2017). The Four Regions in Settlement Space: A Game-Theoretical Approach to Investment Treaty Arbitration Part I: Modelling. Law, Probability and Risk, 17(1),

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Abstract

This article uses game theory to investigate investor
-state dispute settlement and related dispute resolution strategies through international arbitration. When deciding whether either to bring or to defend a claim rather than pursue settlement, investors and states will select strateg
ies to maximize their respective payoffs, either by securing compensation or successfully defeating a claim for compensation. This article develops a model decision making strategy for claimant investors and defendant states based on the observed patterns of outcomes in actual investment treaty arbitration awards. Embedding the problem in the context of utility and hence risk-aversion, it will offer a general solution for the arbitration “game”. Four regions will be identified in the settlement space consisting of the respondent offer against claimant success probability. It will be shown that no settlement is possible in three of these four regions. The go-no-go probability of claimant victory below which it would notbe reasonable for a potential claimant to proceed will be quantified. An algorithm is developed for calculating the settlement sum that the respondent may offer with a reasonable expectation of acceptance by the claimant.

Item Type: Article
Additional Information: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Law, Probability and Risk, following peer review. The version of record Collins, D.A. et al. (2018) The Four Regions in Settlement Space: A Game-Theoretical Approach to Investment Treaty Arbitration Part I: Cases. Law, Probability and Risk 17 (1) will be available online at: https://academic.oup.com/lpr.
Uncontrolled Keywords: International Investment Law; Investor-State Dispute Settlement; Game Theory; Litigation Costs
Divisions: The City Law School > The City Law School - Academic Programmes
URI: http://openaccess.city.ac.uk/id/eprint/18634

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