Market efficiency and global issues: A case of Indonesia

The efficient market hypothesis assumes that the stock prices fully reflect all relevant information. Under the weak form, the future prices are independent of current prices or in the other words, they follow the random walk hypothesis. Global issues tend to have an impact on capital markets around...

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Main Authors: Novi Swandari Budiarso, Winston Pontoh
Format: Article
Language:English
Published: LLC "CPC "Business Perspectives" 2022-10-01
Series:Investment Management & Financial Innovations
Subjects:
Online Access:https://www.businessperspectives.org/images/pdf/applications/publishing/templates/article/assets/17117/IMFI_2022_04_Budiarso.pdf
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author Novi Swandari Budiarso
Winston Pontoh
author_facet Novi Swandari Budiarso
Winston Pontoh
author_sort Novi Swandari Budiarso
collection DOAJ
description The efficient market hypothesis assumes that the stock prices fully reflect all relevant information. Under the weak form, the future prices are independent of current prices or in the other words, they follow the random walk hypothesis. Global issues tend to have an impact on capital markets around the world. Therefore, the objective of this study is to assess the effect of global issues on the movements of expected returns in the Indonesian capital market from January 1, 2022, to June 30, 2022. The sample of 755 listed firms is used to test whether the expected returns have a random pattern during the observation period. The results of runs tests and variance ratio test show that the expected return movements are not random. On those results, the weak form of the efficient market hypothesis is rejected, and it can be concluded that the capital market in Indonesia for this period is inefficient. The findings of this study imply that the information about global issues does not affect the market. The success of the Indonesian government’s strategy in dealing with global issues (including the Covid-19 pandemic) in the form of a vaccination program and also followed by excellent fiscal and monetary policies has led to more predictable returns in the capital market. Moreover, investors can set their portfolios to get extraordinary returns as the market is more predictable.
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spelling doaj.art-3dcead84f2314b33853588bcfe8ea18e2025-01-03T00:01:01ZengLLC "CPC "Business Perspectives"Investment Management & Financial Innovations1810-49671812-93582022-10-0119411310.21511/imfi.19(4).2022.0117117Market efficiency and global issues: A case of IndonesiaNovi Swandari Budiarso0https://orcid.org/0000-0002-5832-0117Winston Pontoh1https://orcid.org/0000-0003-3123-7919Lecturer, Economics and Business Faculty, Accounting Department, Sam Ratulangi UniversityLecturer, Professor, Economics and Business Faculty, Accounting Department, Sam Ratulangi UniversityThe efficient market hypothesis assumes that the stock prices fully reflect all relevant information. Under the weak form, the future prices are independent of current prices or in the other words, they follow the random walk hypothesis. Global issues tend to have an impact on capital markets around the world. Therefore, the objective of this study is to assess the effect of global issues on the movements of expected returns in the Indonesian capital market from January 1, 2022, to June 30, 2022. The sample of 755 listed firms is used to test whether the expected returns have a random pattern during the observation period. The results of runs tests and variance ratio test show that the expected return movements are not random. On those results, the weak form of the efficient market hypothesis is rejected, and it can be concluded that the capital market in Indonesia for this period is inefficient. The findings of this study imply that the information about global issues does not affect the market. The success of the Indonesian government’s strategy in dealing with global issues (including the Covid-19 pandemic) in the form of a vaccination program and also followed by excellent fiscal and monetary policies has led to more predictable returns in the capital market. Moreover, investors can set their portfolios to get extraordinary returns as the market is more predictable.https://www.businessperspectives.org/images/pdf/applications/publishing/templates/article/assets/17117/IMFI_2022_04_Budiarso.pdfCAPMefficientexpected returnsrandom walkweak form
spellingShingle Novi Swandari Budiarso
Winston Pontoh
Market efficiency and global issues: A case of Indonesia
Investment Management & Financial Innovations
CAPM
efficient
expected returns
random walk
weak form
title Market efficiency and global issues: A case of Indonesia
title_full Market efficiency and global issues: A case of Indonesia
title_fullStr Market efficiency and global issues: A case of Indonesia
title_full_unstemmed Market efficiency and global issues: A case of Indonesia
title_short Market efficiency and global issues: A case of Indonesia
title_sort market efficiency and global issues a case of indonesia
topic CAPM
efficient
expected returns
random walk
weak form
url https://www.businessperspectives.org/images/pdf/applications/publishing/templates/article/assets/17117/IMFI_2022_04_Budiarso.pdf
work_keys_str_mv AT noviswandaribudiarso marketefficiencyandglobalissuesacaseofindonesia
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