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Energy Prices Confront CAPM: Implications for Discount Rates. Xiaomei (Barbara) Chen NCSU. What discount rate should be used for evaluating energy investments?. Discount Rate. Rate of time preference Economic growth Risk premium. Three Points.
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Energy Prices Confront CAPM: Implications for Discount Rates Xiaomei (Barbara) Chen NCSU
What discount rate should be used for evaluating energy investments?
Discount Rate • Rate of time preference • Economic growth • Risk premium
Three Points • CAPM (Capital Asset Pricing Model) helps explain commodity prices • Especially energy prices • Risk premiums vary weekly • An unusually powerful test of CAPM • It matters for discounting energy investment
Some Notations • Energy futures return: • Risk-free asset return • Risk Premium: • Commodity beta: • CAPM Predicted Risk Premium:
Energy Futures Propane Crude Oil Gasoline Heating Oil Natural Gas Coal Fitted Model: y = 0.17 + 1.69 x (0.09) (0.40)
Crude Oil Futures Fitted Model: y = 0.17 + 1.12 x (0.12) (0.31)
CAPM Predicted Risk Premium Crude Oil Futures 1985 1990 1995 2000 2005 2010