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Reducing the Impacts of Energy Price Volatility Through Dynamic Portfolio Selection

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  • H. Brett Humphreys
  • Katherine T. McClain

Abstract

This paper uses financial portfolio theory to demonstrate how the energy mix consumed in the United States could be chosen given a national goal to reduce the risky to the domestic macroeconomy of unanticipated energy price shocks. An efficient portfolio frontier of U.S. energy consumption is constructed using time-varying variances and covariances estimated with generalized autoregressive conditional heteroskedastic models. The set of efficient portfolios developed are intended to minimize the impact of price shocks, but are not the least cost energy consumption bundles. The results indicate that while the electric utility industry is operating close to the minimum variance position, a shift towards coal consumption would reduce price volatility for overall U.S. energy consumption. With the inclusion of potential externality costs, the shift remains away from oil but towards natural gas instead of coal.

Suggested Citation

  • H. Brett Humphreys & Katherine T. McClain, 1998. "Reducing the Impacts of Energy Price Volatility Through Dynamic Portfolio Selection," The Energy Journal, , vol. 19(3), pages 107-131, July.
    • Handle: RePEc:sae:enejou:v:19:y:1998:i:3:p:107-131
    DOI: 10.5547/ISSN0195-6574-EJ-Vol19-No3-6
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    References listed on IDEAS

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    2. Darwin C. Hall, 1996. "Geoeconomic time and global warming: renewable energy and conservation policy," International Journal of Social Economics, Emerald Group Publishing Limited, vol. 23(4/5/6), pages 64-87, April.
    3. Knut Anton Mork & Oystein Olsen & Hans Terje Mysen, 1994. "Macroeconomic Responses to Oil Price Increases and Decreases in Seven OECD Countries," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4), pages 19-36.
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