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Asset Prices and Changes in Risk within a Bivariate Model

Abstract : This paper analyzes the effect on the price of the risky asset for both global and marginal changes, in dependent, independent, exogenous and endogenous risks. We find that global changes induce riskier behavior and decrease market prices when the utility function exhibits generalized relative risk aversions less than their benchmark values. Marginal changes in the endogenous risk decrease the market prices when all the coefficients of generalized relative risk aversion to the endogenous risk are less than their orders. Marginal changes in the exogenous risk decrease the price of the risky asset, when all the coefficients of generalized risk aversion to the exogenous risk are less than one. Positive dependence induces a decrease in the market price whereas negative dependence causes an increase in the same price. Furthermore, increasing the correlation between the two risks leads to the fall in the price of the risky asset, when the utility function of the representative investor exhibits pair-wise risk aversion. We recover the results concerning the univariate framework with additive background risk.
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Submitted on : Monday, June 20, 2022 - 9:13:02 AM
Last modification on : Tuesday, June 21, 2022 - 3:45:17 AM

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Octave Jokung-Nguena, Sovan Mitra. Asset Prices and Changes in Risk within a Bivariate Model. Asia-Pacific Financial Markets, Springer Verlag, 2019, 26 (1), pp.47-60. ⟨10.1007/s10690-018-9255-4⟩. ⟨hal-03699128⟩

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