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that these two countries have been approaching a martingale behavior after 2003. France and UK data rejects EMH, due to the …
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This paper tests for the martingale (or random walk) hypothesis in the stock prices of a group of Asian countries. The … martingale hypothesis is conducted with moving-subsample windows, to control the sensitivity of the results to the particular … sample periods. Overall, it is found that the stock prices of Japan, Korea, and Hong Kong are found to follow the martingale …
Persistent link: https://www.econbiz.de/10005063663
This paper examines the efficiency in pricing securities as well as the relation between exchange rate and dynamics of equity returns in a number of emerging stock markets from Africa and Asia,. This study utilizes methodologies based on Single variance ratio test of Lo and Mackinlay (1988),...
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This paper empirically investigates the impact of the Global financial crisis on the efficiency of four Central and Eastern European emerging unit-linked insurance markets, applying the automatic variance ratio (AVR) test of Kim (2009) and variance ratio tests using ranks and signs by Wright...
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describe a statistical behavior known as a martingale. All five conditions are found to apply to the six data series. Non … exchange rates are features that are present in the data but that do not invalidate the general designation of a martingale …
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