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Quantifying and Modeling Long-Range Cross-Correlations in Multiple Time Series with Applications to World Stock Indices
matrix theory quantify risk international investment managers
2011/3/23
We propose a modified time lag random matrix theory in order to study time lag cross-correlations in multiple time series. We apply the method to 48 world indices, one for each of 48 different countri...
Quantifying and Modeling Long-Range Cross-Correlations in Multiple Time Series with Applications to World Stock Indices
time series quantify risk international investment managers
2011/3/23
We propose a modified time lag random matrix theory in order to study time lag cross-correlations in multiple time series. We apply the method to 48 world indices, one for each of 48 different countri...
How to quantify the influence of correlations on investment diversification
quantify influence correlations investment diversification
2010/12/20
When assets are correlated, benefits of investment diversification are reduced. To measure the influence of correlations on investment performance, a new quantity - the effective portfolio size - is ...
In this paper we analyzed dependencies in commodity markets investigating correlations of future contracts for commodities over the period 1998.09.01 - 2007.12.14. We constructed a minimal spanning t...