A Long-Memory Model for Multiple Cycles with an Application to the S&P500

Guglielmo Maria Caporale and Luis Gil-Alana

No 10947, CESifo Working Paper Series from CESifo

Abstract: This paper proposes a long-memory model including multiple cycles in addition to the long-run component. Specifically, instead of a single pole or singularity in the spectrum, it allows for multiple poles and thus different cycles with different degrees of persistence. It also incorporates non-linear deterministic structures in the form of Chebyshev polynomials in time. Simulations are carried out to analyse the finite sample properties of the proposed test, which is shown to perform well in the case of a relatively large sample with at least 1000 observations. The model is then applied to weekly data on the S&P500 from 1 January 1970 to 26 October 2023 as an illustration. The estimation results based on the first differenced logged values (i.e., the returns) point to the existence of three cyclical structures in the series with a length of approximately one month, one year and four years respectively, and to orders of integration in the range (0, 0.20), which implies stationary long memory in all cases.

Keywords: fractional integration; multiple cycles; stock market indices; S&P500 (search for similar items in EconPapers)
JEL-codes: C15 C22 (search for similar items in EconPapers)
Date: 2024
New Economics Papers: this item is included in nep-ecm, nep-ets and nep-his
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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