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Estimating time-varying variances and covariances via nearest neighbour multivariate predictions: applications to the NYSE and the Madrid Stock Exchange Index
Julian Andrada-Felix Fernando Fernandez-Rodriguez
, 2009, vol. 41, issue 26, pages 3437-3445
Applied Economics Abstract:
In this article, we present a technique to obtain the time-varying covariance matrix for several time series for nearest neighbour predictors. To illustrate the use of this technique, we analyse the time-varying variances and correlations between the daily returns on two equity stock market indexes, the New York Stock Exchange and the Madrid Stock Exchange Index.
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