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English Abstract: The conception of global macroeconomic spherical model is a three-dimensional space model, which is proposed under the integration of global economy and the globalization of network. In view of the financial crisis in USA in 2008, the output of its crisis has been changed into...
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the abnormal returns and volatility changes of those component stocks. The empirical results show that, after the removal … volatility. To reduce the possible impact on volatility, the authorities may take the activity of margin transactions into …
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In this short paper we summarize and elaborate on a few well-known misconceptions that often occur when people conduct statistical hypothesis testing. For example, when the truthfulness of the null hypothesis is a random event and the formal hypothesis testing procedure cannot reject the null,...
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