Efficient Market Hypothesis in Africa's Sub-Saharan Stock Markets

Efficient Market Hypothesis in Africa's Sub-Saharan Stock Markets
Author: Sebastian Groh
Publisher: GRIN Verlag
Total Pages: 69
Release: 2009-10-03
Genre: Business & Economics
ISBN: 3640438531

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Bachelor Thesis from the year 2009 in the subject Economics - Case Scenarios, grade: 1,3, University of Mannheim (Lehrstuhl für Volkswirtschaftslehre, insbes. Ökonometrie), course: Bachelorarbeit, language: English, abstract: In recent years foreign aid was often conditioned on good institutions. Due to this course the development of financial institutions has been considered vital for the development process. This thesis points in its theoretical part to the positive effects of efficient stock markets on economic growth and examines empirically the efficiency of Africa's sub-Saharan stock markets. Results are then compared with the same tests on four emerging markets in Asia and as a benchmark on S&P 500 and DAX. It discusses further the relationship between market efficiency and financial crisis and comes to the conclusion that a crisis worsens the respective efficiency level. Nevertheless, all African markets are at least able to pass the critical lowest hurdle of market efficiency. However, conclusions from the research propose, that the Asian markets perform better than the African markets, although the study comes to some inconclusive results. Limits to the efficient market hypothesis itself and its empirical analysis are shown throughout the paper. The study suggests that former reforms need to be intensified in order to avoid a further increase in overall income inequalities.

Efficient Market Hypothesis in Africa’s Sub-Saharan Stock Markets

Efficient Market Hypothesis in Africa’s Sub-Saharan Stock Markets
Author: Sebastian Groh
Publisher: GRIN Verlag
Total Pages: 63
Release: 2009-10-02
Genre: Business & Economics
ISBN: 3640438663

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Bachelor Thesis from the year 2009 in the subject Economics - Case Scenarios, grade: 1,3, University of Mannheim (Lehrstuhl für Volkswirtschaftslehre, insbes. Ökonometrie), course: Bachelorarbeit, language: English, abstract: In recent years foreign aid was often conditioned on good institutions. Due to this course the development of financial institutions has been considered vital for the development process. This thesis points in its theoretical part to the positive effects of efficient stock markets on economic growth and examines empirically the efficiency of Africa’s sub-Saharan stock markets. Results are then compared with the same tests on four emerging markets in Asia and as a benchmark on S&P 500 and DAX. It discusses further the relationship between market efficiency and financial crisis and comes to the conclusion that a crisis worsens the respective efficiency level. Nevertheless, all African markets are at least able to pass the critical lowest hurdle of market efficiency. However, conclusions from the research propose, that the Asian markets perform better than the African markets, although the study comes to some inconclusive results. Limits to the efficient market hypothesis itself and its empirical analysis are shown throughout the paper. The study suggests that former reforms need to be intensified in order to avoid a further increase in overall income inequalities.

Stock Market Development in Sub-Saharan Africa

Stock Market Development in Sub-Saharan Africa
Author: Charles Amo Yartey
Publisher: International Monetary Fund
Total Pages: 40
Release: 2007-08
Genre: Business & Economics
ISBN:

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This paper examines the economic importance of stock markets in Africa. It discusses policy options for promoting the development of the stock market in Africa. The results of the paper show that the stock markets have contributed to the financing of the growth of large corporations in certain African countries. An econometric investigation of the impact of stock markets on growth in selected African countries, however, finds inconclusive evidence even though stock market value traded seem to be positively and significantly associated with growth. African stock exchanges now face the challenge of integration and need better technical and institutional development to address the problem of low liquidity. Preconditions for successful regional approaches include the harmonization of legislations such as bankruptcy and accounting laws and a liberalized trade regime. Robust electronic trading systems and central depository systems will be important. Further domestic financial liberalization such as steps to improve the legal and accounting framework, private sector credit evaluation capabilities, and public sector regulatory oversight would also be beneficial.

The Efficient Market Hypothesis and Its Application to Stock Markets

The Efficient Market Hypothesis and Its Application to Stock Markets
Author: Sebastian Harder
Publisher: GRIN Verlag
Total Pages: 65
Release: 2010-11
Genre: Business & Economics
ISBN: 3640743768

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Research Paper (undergraduate) from the year 2008 in the subject Business economics - Investment and Finance, grade: 1.7, The FOM University of Applied Sciences, Hamburg, language: English, abstract: Especially after the 90ies, where the stock markets raised enormously, many private investors joined the stock market and were blended by abnormal profits and neglected possible losses. The same behavior could be observed before the Financial Crisis became reality. But each endless raising stock market would finally collapse, because stock prices are randomly and only driven by relevant news. The adjustment to the news is quickly. This is the theoretical argumentation of the Efficient Market Hypothesis (EMH), which will be evaluated in this paper. The author gives an overview about the EMH by explaining the basic principles and its mathematical formulation. The practical part evaluated the EMH on selected examples, where the theory could only be partly approved.

Testing the Efficiency of African Markets

Testing the Efficiency of African Markets
Author: Daniel N. Simons
Publisher:
Total Pages: 0
Release: 2006
Genre:
ISBN:

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In this paper, we employ various tests to investigate the weak form of the efficient market hypothesis for four African stock markets - Ghana, Mauritius, Egypt and South Africa. The results of both parametric and non-parametric tests show that the South African stock market is weak form efficient, whereas that of Ghana, Mauritius and Egypt are weak form inefficient. This implies that successive security returns on the South African market are independent and follow a random walk. The same cannot be said of the other three markets. Consequently, we also fitted an ARIMA model to the excess return data for Ghana, Mauritius and Egypt using the Box-Jenkins method. The ARIMA models are then used to generate one-period ahead forecasts for the subsequent 12 periods for these three countries. The ARIMA forecasts in all three countries outperformed the naïve model, corroborating our initial inefficiency results from the earlier tests.

Are African Stock Markets Inefficient Or Adaptive? Empirical Literature

Are African Stock Markets Inefficient Or Adaptive? Empirical Literature
Author: Paul-Francois Muzindutsi
Publisher:
Total Pages: 0
Release: 2019
Genre: Economics
ISBN:

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This chapter reviews empirical studies on weak form of efficiency with the aim of establishing whether the African market is inefficient or adaptive. The reviewed studies are categorised based on their methodological approaches to compare the power of linear and non-linear models in testing for weak-form efficiency. The studies on calendar anomalies, an indication of weak-form inefficiency, are reviewed to assess whether these anomalies are adaptive as portrayed by the relatively recent theory of adaptive market hypothesis (AMH). The scope of reviewed studies is also extended to developed and emerging markets to gain a broad comparison of the findings. This review revealed that non-linear dependence has been revealed in stock returns suggesting that non-linear models are best fit to test for the stock market efficiency. Reviewed studies produced contradictory findings with some supporting and others rejecting weak-form efficiency. Thus, most studies support the AMH, which suggests that market efficiencies and anomalies are time changing. This chapter concludes that most of the existing studies on AMH have been carried out in markets other than Africa, and hence, further empirical studies on the evolving and changing nature of efficiency in African stock markets are recommended.

Size-Effect in Frontier African Stock Markets

Size-Effect in Frontier African Stock Markets
Author: Frank Senyo Dewotor
Publisher:
Total Pages: 20
Release: 2016
Genre:
ISBN:

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An attempt was made in this paper to ascertain whether firm size plays a significant role in the performance of equity portfolios in Frontier African markets as observed elsewhere and whether the relationship can be adequately explained by the capital assets pricing model and the efficient markets hypothesis. Over the study period of 2001 to 2010, we found that low market value equity portfolios in frontier Africa earned higher absolute and risk-adjusted returns almost monotonically relative to higher market value equity portfolios. This is also true even where systematic risk is adjusted for non-synchronous trading which others have argued may create biases in the estimates of systematic risk in markets or in securities where liquidity is poor. The results seem to indicate that the efficient market hypothesis is invalid in this event in frontier Africa or that the capital asset pricing model (CAPM) employed in the test is improperly specified.