Multiple cyclical fractional structures in financial time series

Caporale, Guglielmo Maria and Gil-Alana, Luis A. (2008) Multiple cyclical fractional structures in financial time series. Centre for International Capital Markets discussion papers, 2008 (04). pp. 1-9. ISSN 1749-3412

Abstract

This paper analyses multiple cyclical structures in financial time series. In particular, we focus on the monthly structure of the Nasdaq, the Dow Jones and the Standard&Poor stock market indices. The three series are modelled as long-memory processes with poles in the spectrum at multiple frequencies, including the long-run or zero frequency.

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