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- W2988521247 abstract "An Archimedean copula is characterised by its generator. This is a real function whose inverse behaves as a survival function. We propose a semiparametric generator based on a quadratic spline. This is achieved by modelling the first derivative of a hazard rate function, in a survival analysis context, as a piecewise constant function. Convexity of our semiparametric generator is obtained by imposing some simple constraints. The induced semiparametric Archimedean copula produces Kendall’s tau association measure that covers the whole range (−1,1). Inference on the model is done under a Bayesian approach and for some prior specifications we are able to perform an independence test. Properties of the model are illustrated with a simulation study as well as with a real dataset." @default.
- W2988521247 created "2019-11-22" @default.
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- W2988521247 date "2020-05-01" @default.
- W2988521247 modified "2023-09-24" @default.
- W2988521247 title "A Bayesian semiparametric Archimedean copula" @default.
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- W2988521247 doi "https://doi.org/10.1016/j.jspi.2019.09.015" @default.
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