Bivariate copulas: Transformations, asymmetry and measures of concordance

Autor: Sebastian Fuchs, Klaus D. Schmidt
Rok vydání: 2014
Předmět:
Zdroj: Kybernetika. :109-125
ISSN: 1805-949X
0023-5954
DOI: 10.14736/kyb-2014-1-0109
Popis: The present paper introduces a group of transformations on the collection of all bivariate copulas. This group contains an involution which is particularly useful since it provides (1) a criterion under which a given symmetric copula can be transformed into an asymmetric one and (2) a condition under which for a given copula the value of every measure of concordance is equal to zero. The group also contains a subgroup which is of particular interest since its four elements preserve symmetry, the order between two copulas and the value of every measure of concordance.
Databáze: OpenAIRE