Hedging Demand and Excess Volatility in Dynamic Economies

30 Pages Posted: 29 Sep 2005

Date Written: September 2005


This paper introduces an endowment model that can be interpreted as a continuous time, continuous space generalization of Mehra and Prescott (1985) in which the state variable is a weighted average of past growth. The model is tractable enough to provide exact analytical solutions for term and risk premia and for the excess volatility of the market portfolio. These results have been explored in the discrete time literature, but only numerically or through analytical approximations. I demonstrate that stochastic volatility is the duration of the price-dividend ratio with respect to the state variable of the economy. This result shows how the representative investor's hedging demand translates into the volatility of the market portfolio, and is the general equilibrium extension of a known result in Wachter (2002).

Keywords: Volatility, Hedging demand.

JEL Classification: G12, G11

Suggested Citation

Rodriguez, Juan Carlos, Hedging Demand and Excess Volatility in Dynamic Economies (September 2005). Available at SSRN: https://ssrn.com/abstract=631666 or http://dx.doi.org/10.2139/ssrn.631666

Juan Carlos Rodriguez (Contact Author)

Tilburg University and CentER ( email )

P.O. Box 90153
Tilburg, 5000 LE
+31 13 466 3262 (Phone)
+31 13 466 2875 (Fax)

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