New statistical tool revolutionizes understanding of complex relationships and dependencies.
The article introduces copulas and quasi-copulas, which are mathematical tools used to study relationships between variables. Copulas, like Archimedean copulas, help analyze dependence concepts and measures of association. Quasi-copulas are used to find bounds on sets of copulas and have various applications. The researchers explore the properties and applications of these tools, including multivariate Archimedean quasi-copulas.