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.

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.

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.

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.

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.