Milhaud, Xavier; Poncelet, Victorien; Saillard, Clement - In: Risks 6 (2018) 2, pp. 1-23
This work addresses crucial questions about the robustness of the PSDization process for applications in insurance. PSDization refers to the process that forces a matrix to become positive semidefinite. For companies using copulas to aggregate risks in their internal model, PSDization occurs...