The global financial crisis that began in 2007 has forced a re-examination of risk transmission in the financial sector and how it affects financial stability. Risk management concentrates on the analysis of risk at the level of the individual institution and system-wide. This paper illustrates how contingent claims analysis (CCA) can be applied in new ways to improve systemic financial sector ...

The paper by Heider and Hoerova (2009) is ambitious. It studies the interaction between secured interbank lending, unsecured interbank lending, and banks’ portfolio choices. It is motivated by a puzzling empirical observation, namely the “decoupling of secured and unsecured lending rates” in the Great Financial Crisis of 2007–09. The observation made by Heider and Hoerova is that on August 9, 2...

I exploit the potential of latent class models for proposing an innovative framework for financial data analysis. By stressing the latent nature of the most important financial variables, expected return and risk, I am able to introduce a new methodological dimension in the analysis of financial phenomena. In my proposal, (i) I provide innovative measures of expected return and risk, (ii) I sug...

Software systems are critical assets to organisations as they support important business processes and workflow. To maintain the value of these assets, the requirements of software systems must evolve whenever there are changes in business needs. A key problem to organisations is implementing requirements change to the existing software systems. Such initiatives need proper analyses so that the...

We focus on efficiency of assets and portfolios available to investors on financial markets. We employ diversification consistent DEA-risk models with CVaR deviations as the inputs and expected rate of return as the output. Moreover, we allow short selling and take into account margin requirements. Our model is then employed in an empirical study where selected assets from US stock market are i...

In general, a portfolio problem minimizes risk (or negative utility) of a portfolio of financial assets with respect to portfolio weights subject to a budget constraint. The inverse portfolio problem then arises when an investor assumes that his/her risk preferences have a numerical representation in the form of a certain class of functionals, e.g. in the form of expected utility, coherent risk...

This paper focuses on operational risk measurement techniques and on economic capital estimation methods. A data sample of operational losses provided by an anonymous Central European bank is analyzed using several approaches. Multiple statistical concepts such as the Loss Distribution Approach and the Extreme Value Theory, including scenario analysis method, are considered. Custom plausible lo...