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Puzzling deviations from the predictions of rational finance theory have been extensively documented empirically. In … neo-classical concepts, like market efficiency, which are fundamental to financial and economic theory …
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We utilize long-term memory, fractal dimension and approximate entropy as input variables for the Efficiency Index [Kristoufek & Vosvrda (2013), Physica A 392]. This way, we are able to comment on stock market efficiency after controlling for different types of inefficiencies. Applying the...
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returns. We describe the theory behind the approach, discuss parameter choices and apply the novel measure on chosen indices …
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