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The Predictability of Speculative Bubbles: An examination of the log-periodic power law model
Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
Linköping University, Department of Management and Engineering, Economics. Linköping University, Faculty of Arts and Sciences.
2015 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this thesis we examine the ability of the log-periodic power law model to accurately predict the end of speculative bubbles on financial markets through modeling of asset price dynamics on a selection of historical bubbles. The methods we use are based on a nonlinear least squares estimation which yields predictions of when the bubble will change regime.We find evidence which support the occurrence of LPPL-patterns leading up to the change in regime; asset prices during bubble periods seem to oscillate around a faster-than-exponential growth. In most cases the estimation yields accurate predictions, although we conclude that the predictions are quite dependent on at which point in time the prediction is conducted. We also find that the end of a speculative bubble seems to be influenced by both endogenous speculative growth and exogenous factors. For this reason we propose a new way of interpreting the predictions of the model, where the end dates should be interpreted as the start of a time period where the asset prices are especially sensitive to exogenous events. We propose that negative news during this time period results in a regime shift of the bubble. This study is the first to address both the possibilities and the limitations of the LPPL-model, and should therefore be considered as a contribution to the academia.

Place, publisher, year, edition, pages
2015. , 61 p.
Keyword [en]
Econophysics, mathematical finance, LPPL, log-periodic power law model, JLS-model, power law, speculative bubbles, bubble forecasting, modeling asset price dynamics, financial bubbles, bubbles, crashes
National Category
Economics
Identifiers
URN: urn:nbn:se:liu:diva-120378ISRN: LIU-IEI-FIL-A--15/02038--SEOAI: oai:DiVA.org:liu-120378DiVA: diva2:844028
Subject / course
Master Thesis in Business and Economics Programme (Economics)
Supervisors
Available from: 2015-08-03 Created: 2015-08-03 Last updated: 2015-08-17Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
  • rtf