Levy Matrices and Financial Covariances
In a given market, financial covariances capture the intra-stock correlations and can be used to address statistically the bulk nature
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In a given market, financial covariances capture the intra-stock correlations and can be used to address statistically the bulk nature
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A new model for stocks markets using integer values for each stock price is presented. In contrast with previously reported
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We investigate quantitatively the so-called leverage effect, which corresponds to a negative correlation between past returns and future volatility. For
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