Jaschke, Stefan; Stahl, Gerhard; Stehle, Richard - In: Quantitative Finance 7 (2007) 6, pp. 621-636
We present an analysis of the VaR forecasts and the P&L series of all 12 German banks that used internal models for … the 'recalibration factor', i.e. by how much a bank over- or underestimates its VaR. The Basel traffic light approach to … backtesting, which maps the count of exceptions in the trailing year to a multiplicative penalty factor, can be viewed as a way to …