Financial stability depends critically on the two-way interaction between banks and governments. Sovereign creditworthiness represents the ultimate source of insurance for the fi nancial system and provides a solid basis for the pricing of assets, by supplying a risk-free security. A sound...

The major implementational problem for reversible jump Markov chain Monte Carlo methods is that there is commonly no natural way to choose jump proposals since there is no Euclidean structure in the parameter space to guide our choice. We consider mechanisms for guiding the choice of proposal....

One of the main problems in operational risk management is the lack of loss data, which affects the parameter estimates of the marginal distributions of the losses. The principal reason is that financial institutions only started to collect operational loss data a few years ago, due to the...

According to different typologies of activity and priority, risks can assume diverse meanings and it can be assessed in different ways.

The purpose of this research is to introduce a new approach to the decomposition of the Gini measure in terms of concordance and discordance shares: a new kind of dependence, the Gini rank dependence (GRD), and its formal definition are provided.

To capture systemic risk related to network structures, this paper introduces a measure that complements direct exposures with common exposures, as well as compares these to each other. Trying to address the interconnected nature of financial systems, researchers have recently proposed a range...

We propose a distress measure for national banking systems that incorporates not only banks' CDS spreads, but also how they interact with the rest of the global financial system via multiple linkage types. The measure is based on a tensor decomposition method that extracts an adjacency matrix...