Burst and inter-burst duration statistics as empirical test of long-range memory in the financial markets

V. Gontis and A. Kononovicius

Physica A: Statistical Mechanics and its Applications, 2017, vol. 483, issue C, 266-272

Abstract: We address the problem of long-range memory in the financial markets. There are two conceptually different ways to reproduce power-law decay of auto-correlation function: using fractional Brownian motion as well as non-linear stochastic differential equations. In this contribution we address this problem by analyzing empirical return and trading activity time series from the Forex. From the empirical time series we obtain probability density functions of burst and inter-burst duration. Our analysis reveals that the power-law exponents of the obtained probability density functions are close to 3/2, which is a characteristic feature of the one-dimensional stochastic processes. This is in a good agreement with earlier proposed model of absolute return based on the non-linear stochastic differential equations derived from the agent-based herding model.

Keywords: Volatility; Trading activity; First passage times; Long-range memory; Financial markets; Scaling behavior (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (10)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:483:y:2017:i:c:p:266-272

DOI: 10.1016/j.physa.2017.04.163

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