Long memory in the Hybrid Time Series
Abstract
In this paper, consideration is given to the assessment of the availability of long-term memory in a time series with variable coefficients that depend on the Markov chain or the continuous Markov process. In the work we succeeded in establishing sufficient conditions for the present of a long-term memory based on a multifractal detrended fluctuation analysis and a Geweke – Porter-Hudak method. A real example is analysed of the Erste Group in the period 07.01.2000 – 23.10.2017, as a result of which it was possible to prove that this company.Â
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