Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/17564
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dc.contributor.authorBartolozzi, M.en
dc.contributor.authorDrozdz, S.en
dc.contributor.authorLeinweber, D.en
dc.contributor.authorSpeth, J.en
dc.contributor.authorThomas, A.en
dc.date.issued2005en
dc.identifier.citationInternational Journal of Modern Physics C, 2005; 16(9):1347-1361en
dc.identifier.issn0129-1831en
dc.identifier.issn1793-6586en
dc.identifier.urihttp://hdl.handle.net/2440/17564-
dc.description.abstractThe presence of log-periodic structures before and after stock market crashes is considered to be an imprint of an intrinsic discrete scale invariance (DSI) in this complex system. The fractal framework of the theory leaves open the possibility of observing self-similar log-periodic structures at different time scales. In the present work, we analyze the daily closures of four of the most important indices worldwide since 2000: the DAX for Germany and the NASDAQ-100, the S&P 500 and the Dow Jones for the United States. The qualitative behavior of these different markets is similar during the temporal frame studied. Evidence is found for decelerating log-periodic oscillations of duration about two years and starting in September 2000. Moreover, a nested sub-structure starting in May 2002 is revealed, bringing more evidence to support the hypothesis of self-similar, log-periodic behavior. Ongoing log-periodic oscillations are also revealed. A Lomb analysis over the aforementioned periods indicates a preferential scaling factor λ~2. Higher order harmonics are also present. The spectral pattern of the data has been found to be similar to that of a Weierstrass-type function, used as a prototype of a log-periodic fractal function.en
dc.description.statementofresponsibilityM. Bartolozzi, S. Drozdz, D. B. Leinweber, J. Speth, and A. W. Thomasen
dc.language.isoenen
dc.publisherWorld Scientific Publishing Coen
dc.rights© 2005 World Scientific Publishing Co Pte Ltden
dc.subjectDiscrete scale invariance; econophysics; complex systemsen
dc.titleSelf-similar log-periodic structures in western stock markets from 2000en
dc.typeJournal articleen
dc.identifier.rmid0020051137en
dc.identifier.doi10.1142/S0129183105007972en
dc.identifier.pubid54553-
pubs.library.collectionSpecial Research Centre for the Subatomic Structure of Matter publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidLeinweber, D. [0000-0002-4745-6027]en
dc.identifier.orcidThomas, A. [0000-0003-0026-499X]en
Appears in Collections:Special Research Centre for the Subatomic Structure of Matter publications

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