Study the Efficiency Hypothesis in the Egyptian Stock Market

This article aims is to verify if the Egyptian stock market has information efficiency (market efficiency assumptions) by studying the presence of time series properties for daily stock returns between 2005 and 2015. Parametric and non-parametric tests are used to achieve this purpose, such as ADF/...

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Main Author: Mai Ahmed Abdelzaher
Format: Article
Language:English
Published: EconJournals 2021-01-01
Series:International Journal of Economics and Financial Issues
Online Access:https://econjournals.com/index.php/ijefi/article/view/10634
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author Mai Ahmed Abdelzaher
author_facet Mai Ahmed Abdelzaher
author_sort Mai Ahmed Abdelzaher
collection DOAJ
description This article aims is to verify if the Egyptian stock market has information efficiency (market efficiency assumptions) by studying the presence of time series properties for daily stock returns between 2005 and 2015. Parametric and non-parametric tests are used to achieve this purpose, such as ADF/PP unit root- RUNS TEST- Perron - run test. The Jarque– Bera test was used to measure the moderation of returns; the GARCH model and ARCH model are used also. The results referring to the Egyptian stock market follow the inefficient form, and the prices are closer to random traffic standards, showing that the price changes are random. Thus, there may be shares presented at less than their real value. Additionally, the consequence of the inefficiency of the Egyptian stock market on the weak level, given that the prices of stock prices do not reflect all historical information, it is possible for market participants to achieve unusual returns by using historical prices of shares. Keywords: relevant information, risk market, rational investor JEL Classifications: G40,G14 DOI: https://doi.org/10.32479/ijefi.10634
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spelling doaj.art-818088a9c0ba4a3db1ac73d9409650852023-02-15T16:09:39ZengEconJournalsInternational Journal of Economics and Financial Issues2146-41382021-01-011115034Study the Efficiency Hypothesis in the Egyptian Stock MarketMai Ahmed Abdelzaher0faculty of commerce cairo university This article aims is to verify if the Egyptian stock market has information efficiency (market efficiency assumptions) by studying the presence of time series properties for daily stock returns between 2005 and 2015. Parametric and non-parametric tests are used to achieve this purpose, such as ADF/PP unit root- RUNS TEST- Perron - run test. The Jarque– Bera test was used to measure the moderation of returns; the GARCH model and ARCH model are used also. The results referring to the Egyptian stock market follow the inefficient form, and the prices are closer to random traffic standards, showing that the price changes are random. Thus, there may be shares presented at less than their real value. Additionally, the consequence of the inefficiency of the Egyptian stock market on the weak level, given that the prices of stock prices do not reflect all historical information, it is possible for market participants to achieve unusual returns by using historical prices of shares. Keywords: relevant information, risk market, rational investor JEL Classifications: G40,G14 DOI: https://doi.org/10.32479/ijefi.10634 https://econjournals.com/index.php/ijefi/article/view/10634
spellingShingle Mai Ahmed Abdelzaher
Study the Efficiency Hypothesis in the Egyptian Stock Market
International Journal of Economics and Financial Issues
title Study the Efficiency Hypothesis in the Egyptian Stock Market
title_full Study the Efficiency Hypothesis in the Egyptian Stock Market
title_fullStr Study the Efficiency Hypothesis in the Egyptian Stock Market
title_full_unstemmed Study the Efficiency Hypothesis in the Egyptian Stock Market
title_short Study the Efficiency Hypothesis in the Egyptian Stock Market
title_sort study the efficiency hypothesis in the egyptian stock market
url https://econjournals.com/index.php/ijefi/article/view/10634
work_keys_str_mv AT maiahmedabdelzaher studytheefficiencyhypothesisintheegyptianstockmarket