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Publication details

Gold, oil, and stocks: Dynamic correlations

Journal Article

Baruník Jozef, Kočenda Evžen, Vácha Lukáš

serial: International Review of Economics & Finance vol.42, 1 (2016), p. 186-201

project(s): GA14-24129S, GA ČR

keywords: Financial markets, Time-frequency dynamics, High-frequency data, Dynamic correlation, Financial crisis, Wavelets

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abstract (eng):

We employ a wavelet approach and conduct a time-frequency analysis of dynamic correlations between pairs of key traded assets (gold, oil, and stocks) covering the period from 1987 to 2012. The analysis is performed on both intra-day and daily data. We show that heterogeneity in correlations across a number of investment horizons between pairs of assets is a dominant feature during times of economic downturn and financial turbulence for all three pairs of the assets under research. Heterogeneity prevails in correlations between gold and stocks. After the 2008 crisis, correlations among all three assets increase and become homogenous: the timing dif- fers for the three pairs but coincides with the structural breaks that are identified in specific correlation dynamics. A strong implication emerges: during the period under research, and from a different-investment-horizons perspective, all three assets could be used in a well- diversified portfolio only during relatively short periods.


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Institute of Information Theory and Automation