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Vidutinio stiprumo formos rinkos efektyvumo testavimo metodika Baltijos šalių akcijų rinkoje
Date Issued |
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2017 |
Efficient market is described as incapable in real life to exist, where all information should be publicly available, the prices reflect the historical information and there is impossible to earn abnormal returns. The level of stock markets’ efficiency in whole world is different. Usually large stock markets are more efficient than small. Baltic countries’ stock markets also could be described as small, that is why the weak form market efficiency hypothesis was mainly tested in them. For this reason, testing semi-strong form market efficiency in those markets remains relevant scientific and practical problem. Researchers who have explored the Baltic stock markets efficiency in semi-strong form, chosen a relatively short study period. Recently, the economy and stock markets in these countries “experienced” two very sharp economic cycles. For this reason, the methodology for exploring the efficiency of semi-strong form in the Baltic countries in the context of mentioned two economic cycles was developed. It was chosen the even studies and three methods (significance tests): Patell’s standardized abnormal returns, Cross-sectional model and Cumulative abnormal returns.