1. Department of Actuarial Science, Faculty of Business and Economics University of Lausanne, UNIL‐Dorigny Lausanne Switzerland
2. Swiss Finance Institute Lausanne Switzerland
3. Institut de Recherche Mathématique Avancée (IRMA) University of Strasbourg Strasbourg Cedex France
4. Department of Mathematical Sciences University of Copenhagen Copenhagen Denmark
5. Department of Mathematics, RiskLab Switzerland ETH Zurich Zurich Switzerland