0397560 20240103203121.620131112235959.9 000325216000004 10.1038/srep02857 7 s. E cav_un_epca*03865942045-2322310 (2013)Nature Publishing Group fractal markets hypothesis investment horizons wavelets cav_un_auth*0256902 Krištoufek Ladislav Ekonometrie Department of Econometrics E E UTIA-B Department of Econometrics Ústav teorie informace a automatizace AV ČR, v. v. i. http://library.utia.cas.cz/separaty/2013/E/kristoufek-0397560.pdf GA402/09/0965 GA ČR cav_un_auth*0253176 GAP402/11/0948 GA ČR CZ cav_un_auth*0284442 We analyze whether the prediction of the fractal markets hypothesis about a dominance of specific investment horizons during turbulent times holds. To do so, we utilize the continuous wavelet transform analysis and obtained wavelet power spectra which give the crucial information about the variance distribution across scales and its evolution in time. We show that the most turbulent times of the Global Financial Crisis can be very well characterized by the dominance of short investment horizons which is in hand with the assertions of the fractal markets hypothesis. 2014 AH 1 RVO:67985556 http://hdl.handle.net/11104/0225903 MULTIDISCIPLINARYSCIENCES 5.078 0.823 1.IV 0.03624 2.174 7118 2484 1.998 ScienceCitationIndexExpanded Q1 82.411 91.818 Q1 Q2 2013 000325216000004 WOS cav_un_epca*0386594 Scientific Reports 2045-2322 2045-2322 Roč. 3 č. 10 2013 , 2857-1-2857-12 Nature Publishing Group