期刊
MATHEMATICS
卷 10, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/math10050707
关键词
generalized autoregressive score; skewness and shape; nonparametric test; self-similarity; long-range dependence; financial market
类别
This paper conducts a nonparametric test using a model-based approach for conditional moment estimation to study the long-memory property of higher moments. By analyzing the daily returns of stocks in the S&P500 index over the past ten years, it is found that mean and skewness exhibit short memory, while variance and shape exhibit long memory. These results have significant implications for asset allocation, option pricing, and market efficiency evaluation.
In this paper, by considering a model-based approach for conditional moment estimation, a nonparametric test was performed to study the long-memory property of higher moments. We considered the daily returns of the stocks included in the S&P500 index in the last ten years (for the period running from the 1st of January 2011 to the 1st of January 2021). We found that mean and skewness were characterized by short memory, while variance and shape had long memory. These results have deep implications in terms of asset allocation, option pricing and market efficiency evaluation.
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