One of the most significant economic developments of the past decade has been the development of innovative risk-financing techniques in the insurance industry. Innovation has been driven by the increase in the frequency and severity of catastrophic losses, capital management needs in the life...

We investigate capital requirements based on Value at Risk (V@R) and Average Value at Risk (AV@R) when the bank's econometric model only approximately describes the true, unknown return generating process, as is often the case in practice. We provide a simple formula for such capital...

In the present paper, we propose a robust decision methodology, when there is some ambiguity concerning the potential future scenarii about decision variables. The decision maker considers several prior models for those scenarii and displays an ambiguity aversion against them. A two step...

Model risk has a huge impact on any risk measurement procedure and its quantification is therefore a crucial step. In this paper, we introduce three quantitative measures of model risk when choosing a particular reference model within a given class: the absolute measure of model risk, the...