Mean–variance efficient strategies in proportional reinsurance under group correlation in a gaussian framework

Autor: Paolo Serafini, Laura Ziani, Flavio Pressacco
Přispěvatelé: Ziani, Laura, Dept. of Finance, University of Udine, Italy (DIFI), Dept. of Finance, University of Udine, Italy, Dipartimento di Matematica e Informatica - Universita Udine (DIMI), Università degli Studi di Udine - University of Udine [Italie], Dept. of Finance, University of Udine
Rok vydání: 2011
Předmět:
Zdroj: European Actuarial Journal. 1:433-454
ISSN: 2190-9741
2190-9733
DOI: 10.1007/s13385-011-0020-6
Popis: Accepted for publication on European Actuarial Journal, first number, 2010; The paper concerns optimal mean-variance proportional reinsurance under group correlation. In order to solve the corresponding constrained quadratic optimization problem, we make large recourse both to the smart friendly technique originally proposed by B. de Finetti in his pioneering paper and to the well known Karush-Kuhn-Tucker conditions for constrained optimization. We offer closed form results and insightful considerations about the problem. In detail, we give closed form formulas to express the efficient mean-variance retention set both in the retention space and in the mean-variance one.
Databáze: OpenAIRE