On the interplay between short and long term memory in the power-law cross-correlations setting

0452316 - ÚTIA 2016 RIV NL eng J - Článek v odborném periodiku
Krištoufek, Ladislav
On the interplay between short and long term memory in the power-law cross-correlations setting.
Physica. A : Statistical Mechanics and its Applications. Roč. 421, č. 1 (2015), s. 218-222. ISSN 0378-4371. E-ISSN 1873-2119
Grant CEP: GA ČR(CZ) GP14-11402P
Institucionální podpora: RVO:67985556
Klíčová slova: Power-law cross-correlations * Long term memory * Short term memory
Kód oboru RIV: AH - Ekonomie
Impakt faktor: 1.785, rok: 2015
http://library.utia.cas.cz/separaty/2015/E/kristoufek-0452316.pdf

We focus on emergence of the power-law cross-correlations from processes with both short and long term memory properties. In the case of correlated error-terms, the power- law decay of the cross-correlation function comes automatically with the characteristics of separate processes. Bivariate Hurst exponent is then equal to an average of separate Hurst exponents of the analyzed processes. Strength of short term memory has no effect on these asymptotic properties. Implications of these findings for the power-law cross-correlations concept are further discussed.
Trvalý link: http://hdl.handle.net/11104/0253710