Study of Speculative Bubbles: The Contribution of Approximate Entropy

The purpose of this article is to provide a survey of the presence of speculative bubbles. The empirical study uses a new technique borrowed from statistical physics suggested by Pincus (1991). We use approximate entropy to test the presence of bubbles in the Tunisian and French markets. To this end...

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Main Authors: Imen Mahmoud, Kamel Naoui, Hatem Jemmali
Format: Article
Language:English
Published: EconJournals 2013-09-01
Series:International Journal of Economics and Financial Issues
Subjects:
Online Access:https://dergipark.org.tr/tr/pub/ijefi/issue/31958/351946?publisher=http-www-cag-edu-tr-ilhan-ozturk
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author Imen Mahmoud
Kamel Naoui
Hatem Jemmali
author_facet Imen Mahmoud
Kamel Naoui
Hatem Jemmali
author_sort Imen Mahmoud
collection DOAJ
description The purpose of this article is to provide a survey of the presence of speculative bubbles. The empirical study uses a new technique borrowed from statistical physics suggested by Pincus (1991). We use approximate entropy to test the presence of bubbles in the Tunisian and French markets. To this end, weekly data of primary stock markets of the countries under study (Tunisia, France) were used. Since our aim is to study the crisis, data before and after the crash was also analyzed. The crisis decade has been identified as the sample period for our study. More specifically, we consider weekly data over the 2002 to 2012 period. The obtained results confirm the presence of a speculative bubble during the "subprime" crisis (2008) in the two markets.
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spelling doaj.art-6e2b983fbb7548fba6dba8dd1ede7e5a2023-02-15T16:11:23ZengEconJournalsInternational Journal of Economics and Financial Issues2146-41382013-09-01336836931032Study of Speculative Bubbles: The Contribution of Approximate EntropyImen MahmoudKamel NaouiHatem JemmaliThe purpose of this article is to provide a survey of the presence of speculative bubbles. The empirical study uses a new technique borrowed from statistical physics suggested by Pincus (1991). We use approximate entropy to test the presence of bubbles in the Tunisian and French markets. To this end, weekly data of primary stock markets of the countries under study (Tunisia, France) were used. Since our aim is to study the crisis, data before and after the crash was also analyzed. The crisis decade has been identified as the sample period for our study. More specifically, we consider weekly data over the 2002 to 2012 period. The obtained results confirm the presence of a speculative bubble during the "subprime" crisis (2008) in the two markets.https://dergipark.org.tr/tr/pub/ijefi/issue/31958/351946?publisher=http-www-cag-edu-tr-ilhan-ozturkspeculative bubbles approximate entropy financial crashes speculation.
spellingShingle Imen Mahmoud
Kamel Naoui
Hatem Jemmali
Study of Speculative Bubbles: The Contribution of Approximate Entropy
International Journal of Economics and Financial Issues
speculative bubbles
approximate entropy
financial crashes
speculation.
title Study of Speculative Bubbles: The Contribution of Approximate Entropy
title_full Study of Speculative Bubbles: The Contribution of Approximate Entropy
title_fullStr Study of Speculative Bubbles: The Contribution of Approximate Entropy
title_full_unstemmed Study of Speculative Bubbles: The Contribution of Approximate Entropy
title_short Study of Speculative Bubbles: The Contribution of Approximate Entropy
title_sort study of speculative bubbles the contribution of approximate entropy
topic speculative bubbles
approximate entropy
financial crashes
speculation.
url https://dergipark.org.tr/tr/pub/ijefi/issue/31958/351946?publisher=http-www-cag-edu-tr-ilhan-ozturk
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