Bubble footprints in the Malaysian stock market: Are they rational?

Purpose – The purpose of this paper is to re-examine the presence of rational speculative bubbles inthe Malaysian stock market in light of contradictory results presented in previous studies.Design/methodology/approach – The authors use descriptive statistics, explosiveness tests andthe duration dep...

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Main Authors: Nartea, G., Cheema, Muhammad
Format: Journal Article
Published: Emerald Group Publishing 2014
Online Access:http://hdl.handle.net/20.500.11937/13221
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author Nartea, G.
Cheema, Muhammad
author_facet Nartea, G.
Cheema, Muhammad
author_sort Nartea, G.
building Curtin Institutional Repository
collection Online Access
description Purpose – The purpose of this paper is to re-examine the presence of rational speculative bubbles inthe Malaysian stock market in light of contradictory results presented in previous studies.Design/methodology/approach – The authors use descriptive statistics, explosiveness tests andthe duration dependence test. They use an expanded data set that encompasses at least two allegedbubble episodes addressing a significant limitation of previous studies. The authors use both monthlyand weekly returns addressing concerns about the sensitivity of duration dependence test results to theuse of monthly versus weekly returns, as well as a battery of alternative measures of returns.Findings – The authors detect bubble footprints but they do not appear to be rational. They found noevidence of rational speculative bubbles over the sample period regardless of whether monthly orweekly returns was used. The authors suggest that if there were bubbles in the Malaysian stock market,they might have been caused by irrational investor behaviour. The authors’ results do not support thesuggestion that the duration dependence test is sensitive to the use of monthly versus weekly returns.Practical implications – Despite the absence of rational bubbles in the Malaysian stock market, thefaint bubble footprints detected still suggest caution for investors, as the authors cannot categoricallyrule out the presence of irrational bubbles.Originality/value – This paper clarifies conflicting results of previous studies. It also contributes tothe literature on bubble testing by presenting new evidence from an emerging market refuting the claimthat duration dependence test results are sensitive to the use of either weekly or monthly returns.
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institution Curtin University Malaysia
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publishDate 2014
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spelling curtin-20.500.11937-132212017-09-13T15:54:08Z Bubble footprints in the Malaysian stock market: Are they rational? Nartea, G. Cheema, Muhammad Purpose – The purpose of this paper is to re-examine the presence of rational speculative bubbles inthe Malaysian stock market in light of contradictory results presented in previous studies.Design/methodology/approach – The authors use descriptive statistics, explosiveness tests andthe duration dependence test. They use an expanded data set that encompasses at least two allegedbubble episodes addressing a significant limitation of previous studies. The authors use both monthlyand weekly returns addressing concerns about the sensitivity of duration dependence test results to theuse of monthly versus weekly returns, as well as a battery of alternative measures of returns.Findings – The authors detect bubble footprints but they do not appear to be rational. They found noevidence of rational speculative bubbles over the sample period regardless of whether monthly orweekly returns was used. The authors suggest that if there were bubbles in the Malaysian stock market,they might have been caused by irrational investor behaviour. The authors’ results do not support thesuggestion that the duration dependence test is sensitive to the use of monthly versus weekly returns.Practical implications – Despite the absence of rational bubbles in the Malaysian stock market, thefaint bubble footprints detected still suggest caution for investors, as the authors cannot categoricallyrule out the presence of irrational bubbles.Originality/value – This paper clarifies conflicting results of previous studies. It also contributes tothe literature on bubble testing by presenting new evidence from an emerging market refuting the claimthat duration dependence test results are sensitive to the use of either weekly or monthly returns. 2014 Journal Article http://hdl.handle.net/20.500.11937/13221 10.1108/IJAIM-11-2013-0063 Emerald Group Publishing restricted
spellingShingle Nartea, G.
Cheema, Muhammad
Bubble footprints in the Malaysian stock market: Are they rational?
title Bubble footprints in the Malaysian stock market: Are they rational?
title_full Bubble footprints in the Malaysian stock market: Are they rational?
title_fullStr Bubble footprints in the Malaysian stock market: Are they rational?
title_full_unstemmed Bubble footprints in the Malaysian stock market: Are they rational?
title_short Bubble footprints in the Malaysian stock market: Are they rational?
title_sort bubble footprints in the malaysian stock market: are they rational?
url http://hdl.handle.net/20.500.11937/13221