Goodness-of-fit tests for copulas
Journal of Multivariate Analysis
An Introduction to Copulas (Springer Series in Statistics)
An Introduction to Copulas (Springer Series in Statistics)
Testing for equality between two copulas
Journal of Multivariate Analysis
Semiparametric multivariate density estimation for positive data using copulas
Computational Statistics & Data Analysis
Flexible modeling based on copulas in nonparametric median regression
Journal of Multivariate Analysis
Note(s): A note on the asymptotic behavior of the Bernstein estimator of the copula density
Journal of Multivariate Analysis
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Copulas are extensively used for dependence modeling. In many cases the data does not reveal how the dependence can be modeled using a particular parametric copula. Nonparametric copulas do not share this problem since they are entirely data based. This paper proposes nonparametric estimation of the density copula for @a-mixing data using Bernstein polynomials. We focus only on the dependence structure between stochastic processes, captured by the copula density defined on the unit cube, and not the complete distribution. We study the asymptotic properties of the Bernstein density copula, i.e., we provide the exact asymptotic bias and variance, we establish the uniform strong consistency and the asymptotic normality. An empirical application is considered to illustrate the dependence structure among international stock markets (US and Canada) using the Bernstein density copula estimator.