 Some aspects of modeling dependence in copula-based Markov chainsMartial Longla and Magda Peligrad Journal of Multivariate Analysis, 2012, vol. 111, issue C, 234-240 Abstract: Dependence coefficients have been widely studied for Markov processes defined by a set of transition probabilities and an initial distribution. This work clarifies some aspects of the theory of dependence structure of Markov chains generated by copulas that are useful in time series econometrics and other applied fields. The main aim of this paper is to clarify the relationship between the notions of geometric ergodicity and geometric ρ-mixing; namely, to point out that for a large number of well known copulas, such as Clayton, Gumbel or Student, these notions are equivalent. Some of the results published in the last years appear to be redundant if one takes into account this fact. We apply this equivalence to show that any mixture of Clayton, Gumbel or Student copulas generates both geometrically ergodic and geometric ρ-mixing stationary Markov chains, answering in this way an open question in the literature. We shall also point out that a sufficient condition for ρ-mixing, used in the literature, actually implies Doeblin recurrence. Keywords: Markov chains; Copula; Mixing conditions; Reversible processes (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:jmvana:v:111:y:2012:i:c:p:234-240 Ordering information: This journal article can be ordered from DOI: 10.1016/j.jmva.2012.01.025 Access Statistics for this article Journal of Multivariate Analysis is currently edited by de Leeuw, J. More articles in Journal of Multivariate Analysis from Elsevier |
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