Showing 1 - 10 of 11
describe the dependence between the error components by a copula. For parameters estimation in the econometric model in case of … dependent error components the analytical expressions for log-likelihood function and its derivatives are given. The results of …
Persistent link: https://www.econbiz.de/10010937054
The final part of the consultation series on copula functions is devoted to the description of copula selection methods … to choose the copula model that provides the best fit for the empirical data at hand, as well as to the description of … copula evaluation methods by using goodness-of-fit tests. …
Persistent link: https://www.econbiz.de/10010841018
The most important properties of p-variate distributions on the hypercube whose univariate marginals are uniformly distributed on [0; 1] are discussed. These distributions, also called p-copulas, have become a popular tool in order to study financial markets, macroeconomics and other fields. The...
Persistent link: https://www.econbiz.de/10010841020
Considering correlations between entries of credit portfolio is an important objective when estimating credit risk. This paper aims to construct a multivariate model of credit losses examining a portfolio composed of loans to a set of kinds of business. The paper also introduces the method of...
Persistent link: https://www.econbiz.de/10010841041
We continue publishing the four-part consultation of professor of Moscow School of Economics of Lomonosov MSU Dean Fantazzini. The first part, that appeared in 2 (10), 2008 of the journal, dealt with the introduction to the problem (section one: basic concepts and types of financial risks,...
Persistent link: https://www.econbiz.de/10009190191
The paper presents the research results on detection of structural breaks in copula models of multivariate time …
Persistent link: https://www.econbiz.de/10009018538
The paper is aimed at making comparative analysis of main market risk features based on the copula-modeling and on the … is used for practical implementation of the introduced methodology when dealing with copulas.Copula application makes it …
Persistent link: https://www.econbiz.de/10009018558
The article deals with the issue of copula use in the program of market risk hedging. Copula-models performance is … compared to the OLS-based ones. Fully parametric and semi-parametric approaches to copula-modeling are investigated. The copula …-the-less, it is shown that copula-based approaches are able to outperform OLS-based ones only for direct hedging programs, while …
Persistent link: https://www.econbiz.de/10009131085
Problems which are related to copula functions, their properties, selection methods for specific baseline data … reflect the specific features of the available data. There are grounds to argue that models which are based on copula …
Persistent link: https://www.econbiz.de/10009140905
Paper is devoted to comparison of various copula models application to investment portfolio risk measurement … as expected shortfall (ES) and Value-at-Risk (VaR). Statistically justified approach to hierarchical copula definition is …
Persistent link: https://www.econbiz.de/10011186461