Doctoral Degrees (Business Management)

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Browsing Doctoral Degrees (Business Management) by Author "Adjasi, Charles Komla"

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    Links between stock market development and key economic growth variables : the case of selected African countries
    (Stellenbosch : Stellenbosch University, 2007-03) Adjasi, Charles Komla; Biekpe, Nicholas; Stellenbosch University. Faculty of Economic and Management Sciences. Dept. of Business Management.
    ENGLISH ABSTRACT: This thesis is a collection of eight essays on links between stock market development and economic growth in selected African countries. In the first essay an overall index of stock market development shows that South Africa, Mauritius, Zimbabwe, Morocco and the BRVM in Cote d’Ivoire have the most developed stock markets in terms of market size, liquidity and transactions cost indicators. However, Nigeria and Egypt also emerge when institutional development is considered. Ghana, Malawi and Namibia have the least developed stock markets. Results from the second essay on stock markets and growth show a positive relationship between stock market development and economic growth. This positive influence is significant for countries classified as upper-middleincome economies. On the basis of market capitalization groupings, stock market developments play a significant role in growth only for moderately capitalized markets. Form the third essay exchange rate depreciation in the long-run leads to increases in stock market returns in Tunisia. Exchange rate movement leads to stock market returns in Egypt, while stock market returns lead to exchange rate movement in Kenya and Mauritius. Shocks induced by either stock market returns or exchange rate changes are more protracted in Ghana, Kenya, Mauritius and Nigeria than in South Africa and Egypt. Cointegration analysis in the fourth essay reveals a negative relationship between inflation and stock market prices for three out of seven countries: Egypt, Mauritius and South Africa. Short-run models for these countries show a negative response of stock returns to instantaneous change in inflation. In Ghana, Kenya, Nigeria and Tunisia, where cointegration is absent, there is unidirectional causality from inflation to stock returns for Ghana, bidirectional causality between inflation and stock returns for Kenya, and no significant results for Nigeria and Tunisia. Results from the fifth essay show that investment in the selected countries grows significantly with an increase in stock market returns. Even without the inclusion of South Africa in the panel, stock market returns in the other relatively less developed African economies impact positively on investment growth. Cointegration tests from the sixth essay indicate a long-run relationship between interest rate and stock prices for Kenya and South Africa. In the short-run there is unidirectional causality from stock returns to interest rate in Kenya and bidirectional causality in South Africa. Responses to shocks have long-lasting effects in Egypt, Ghana, Nigeria and Tunisia and are short-lived in Mauritius. The seventh essay shows that countries with more developed stock markets (Cote d’Ivoire, South Africa, Mauritius, Tunisia and Morocco), have the most developed financial intermediation system. There is evidence from correlation analysis of complementarity between stock market development and bank developments in the selected countries. Finally from the eighth essay two long-run stable cointegration relations are found, one hinging on a larger market (South Africa) and the other on a smaller market (Ghana). The short-run error correction framework shows significant feedback and causal effects both ways from smaller to larger markets.