Séminaire GREDEG - Samuel Ferey (Université de Lorraine, BETA)

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"Overdetermined Causation Cases, Contribution and the Shapley Value"

21-04-2016 - 14h00 à 15h30 - Salle Picasso

Samuel Ferey

(Université de Lorraine, BETA)

 

Jeudi 21 avril 2016 

 

RésuméThe overdetermined causation cases (duplicative causation, concurrent causes etc.) challenge the consistency and relevance of the but-for-test in Torts. A strict application of the but-for criterion to these cases leads to paradoxes and solutions that violate common sense. This explains why a large literature has been developed in philosophy and jurisprudence to provide more accurate causation criteria. The paper adds to this literature by considering over-determination cases from an economic and mathematical point of view. Following Van Hees and Braham (2009), we consider over-determined cases through cooperative game theory and define "overdetermined causation games". We characterize these games in terms of marginal contribution to the great coalition and we provide a typology of different overdetermined causation cases. Lastly, we apply to these games a traditional sharing rule developed in cooperative game theory, the Shapley-value, to assessing the "causal" contribution of each tort feasor.


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