bibtype J - Journal Article
ARLID 0452314
utime 20240103211417.9
mtime 20151216235959.9
SCOPUS 84926059721
WOS 000354589200011
DOI 10.1016/j.physa.2015.02.086
title (primary) (eng) Can the bivariate Hurst exponent be higher than an average of the separate Hurst exponents?
specification
page_count 4 s.
media_type P
serial
ARLID cav_un_epca*0257423
ISSN 0378-4371
title Physica. A : Statistical Mechanics and its Applications
volume_id 431
volume 1 (2015)
page_num 124-127
publisher
name Elsevier
keyword Correlations
keyword Power-law cross-correlations
keyword Bivariate Hurst exponent
keyword Spectrum coherence
author (primary)
ARLID cav_un_auth*0256902
full_dept (cz) Ekonometrie
full_dept (eng) Department of Econometrics
department (cz) E
department (eng) E
full_dept Department of Econometrics
name1 Krištoufek
name2 Ladislav
institution UTIA-B
garant A
fullinstit Ústav teorie informace a automatizace AV ČR, v. v. i.
source
url http://library.utia.cas.cz/separaty/2015/E/kristoufek-0452314.pdf
cas_special
project
ARLID cav_un_auth*0303546
project_id GP14-11402P
agency GA ČR
country CZ
mrcbC12-t Analýza dvoudimenzionální dlouhé paměti ve finančních časových řadách
abstract (eng) In this note, we investigate possible relationships between the bivariate Hurst exponent Hxy and an average of the separate Hurst exponents $/frac{1}{2}(H_x +H_y)$. We show that two cases are well theoretically founded. These are the cases when $H_{xy} = /frac{1}{2}(H_x + H_y )$ and $H_{xy} < /frac{1}{2}(H_x + H_y )$. However, we show that the case of $H_{xy} > /frac{1}{2}(H_x + H_y )$ is not possible regardless of stationarity issues. Further discussion of the implications is provided as well together with a note on the finite sample effect.
RIV AH
reportyear 2016
num_of_auth 1
inst_support RVO:67985556
permalink http://hdl.handle.net/11104/0253719
confidential S
mrcbT16-e PHYSICS.MULTIDISCIPLINARY
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arlyear 2015
mrcbU14 84926059721 SCOPUS
mrcbU34 000354589200011 WOS
mrcbU63 cav_un_epca*0257423 Physica. A : Statistical Mechanics and its Applications 0378-4371 1873-2119 Roč. 431 č. 1 2015 124 127 Elsevier