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Volatility Spillovers Across Petroleum Markets

By using our newly defined measure, we detect and quantify asymmetries in the volatility spillovers of petroleum commodities: crude oil, gasoline, and heating oil. The increase in volatility spillovers after 2001 correlates with the progressive financialization of the commodities. Further, increasing spillovers from volatility among petroleum commodities substantially change their pattern after 2008 (the financial crisis and advent of tight oil production). After 2008, asymmetries in spillovers markedly declined in terms of total as well as directional spillovers. In terms of asymmetries we also show that overall volatility spillovers due to negative (price) returns materialize to a greater degree than volatility spillovers due to positive returns. An analysis of directional spillovers reveals that no petroleum commodity dominates other commodities in terms of general spillover transmission.

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Keywords: Volatility spillovers, Asymmetry, Petroleum markets

DOI: 10.5547/01956574.36.3.jbar

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Published in Volume 36, Number 3 of The Quarterly Journal of the IAEE's Energy Economics Education Foundation.