By Arindam Chaudhuri, Soumya K. Ghosh
This ebook deals a complete advisor to the modelling of operational chance utilizing hazard concept. It presents a collection of tools for measuring operational hazards below a undeniable measure of vagueness and impreciseness, as encountered in real-life facts. It exhibits how chance idea and indeterminate uncertainty-encompassing levels of trust should be utilized in analysing the danger functionality, and describes the parametric g-and-h distribution linked to severe worth concept as an engaging candidate during this regard. The ebook bargains a whole evaluate of fuzzy equipment for picking either worth in danger (VaR) and subjective worth in danger (SVaR), including a balance estimation of VaR and SVaR. in keeping with the simulation experiences and case stories suggested on right here, the possibilistic quantification of hazard plays always larger than the probabilistic version. threat is evaluated via integrating fuzzy concepts: the bushy analytic hierarchy strategy and the bushy extension of concepts for order choice by means of similarity to the precise resolution. due to its really good content material, it's basically meant for postgraduates and researchers with a uncomplicated wisdom of algebra and calculus, and will be used as reference consultant for research-level classes on fuzzy units, threat idea and mathematical finance. The booklet additionally deals an invaluable resource of knowledge for banking and finance execs investigating diverse risk-related aspects.
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Additional resources for Quantitative Modeling of Operational Risk in Finance and Banking Using Possibility Theory
Example text
One way to address this issue is to adjust the capital charge by a risk profile index (RPI) which reflects the difference between the bank’s specific risk profiles compared to the industry as a whole. The Committee plans to examine the extent to which individual banks risk profile will deviate significantly from that of the types of portfolios used to arrive at the regulatory term and the cost or benefits of introducing a RPI to adjust for such differences. Another important methodology is the loss distribution approach (LDA).
They showed that g and h are almost linearly related. From Eq. 11) it is possible to generate number of data pairs (g, h). Based on this data we have the least square estimate of a and b where [8]: g ¼ a þ bh ð3:13Þ Substituting the value of g from Eq. 12), the equation for h is solved. Once the value of h is estimated it is substituted in Eq. 10), the equation for g is solved. It is further observed that for the smaller values of moments the solutions are very close; but for the larger values of moments the solutions are quite close but not as close to the actual values as desired.
The Peterson Institute of International Economics (2008) Chapter 3 The g-and-h Distribution Abstract An introduction to g-and-h distribution is provided in this chapter. The quantification of operational risk is often performed through g-and-h distribution. The concept of g-and-h distribution is presented along with some important properties of g-and-h distribution. The g-and-h distribution is fitted to the real life data. Some significant comments on the calculation of g and h parameters concludes the chapter.