Within the Internal Ratings-Based (IRB) approach of Basel II it is assumed that idiosyncratic risk has been fully diversified away. The impact of undiversified idiosyncratic risk on portfolio Value-at-Risk can be quantified via a granularity adjustment (GA). We provide an analytic formula for...

This paper investigates interest rate risk exposures of listed euro area banks which fall under the Single Supervisory Mechanism (SSM). We analyze the period 2005 to 2014, as it includes times of very low interest rates in which banks may have pursued a more risky maturity transformation...

We propose an affine term structure model that allows for tenor-dependence of yield curves andthus for different risk categories in interbank rates, an important feature of post-crisis interestrate markets. The model has a Nelson-Siegel factor loading structure and thus economicallywell...

We investigate the optimal martingale transport problem under additional constraints and its application to robust price bounds for financial derivatives. More specifically, we derive improved price bounds by taking into account supplementary information about the variance of the returns on the...

Investor sentiment is measured at both global and local levels as the common component of pricing errors investors make when valuing stocks. Investor sentiment and macroeconomic factors are jointly modelled within a hierarchical dynamic factor model allowing for time-varying parameters and...