A Generalised Seasonality Test and Applications for Cryptocurrency and Stock Market Seasonality

Savva Shanaev*, Binam Ghimire

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This study develops a novel generalised seasonality test that utilises sequential dummy variable regressions for seasonality periodicity equal to prime numbers. It allows to test for existence of any seasonal patterns against the broad null hypothesis of no seasonality and to isolate most prominent seasonal cycles while using harmonic mean p-values to control for multiple testing. The proposed test has numerous applications in time series analysis. As an example, it is applied to identify seasonal patterns in 76 national stock markets and 772 cryptocurrency markets to detect trading cycles, determine their length, and test the weak-form efficient market hypothesis. Cryptocurrency markets are shown to be less efficient than national stock markets, with predominantly irregular seasonality periodicity that cannot be reduced to conventional weekly, monthly, or annual cycles.
Original languageEnglish
Pages (from-to)172-185
Number of pages14
JournalQuarterly Review of Economics and Finance
Volume86
Early online date20 Jul 2022
DOIs
Publication statusPublished - 1 Nov 2022

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