Univariate and multivariate measures of risk aversion and risk premiums

Univariate and multivariate measures of risk aversion and risk premiums

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Article ID: iaor1994952
Country: Switzerland
Volume: 45
Issue: 1/4
Start Page Number: 265
End Page Number: 296
Publication Date: Dec 1993
Journal: Annals of Operations Research
Authors: ,
Abstract:

This paper develops univariate and multivariate measures of risk aversion for correlated risks. The authors derive Rubinstein’s measures of risk aversion from the risk premiums with correlated random initial wealth and risk. It is shown that these measures are not only consistent with those for uncorrelated or independent risks, but also have the corresponding local properties of the Arrow-Pratt measures of risk aversion. Thus Rubinstein’s measures of risk aversion are the appropriate extension of the Arrow-Pratt measures of risk aversion in the univariate case. The authors also derive a risk aversion matrix from the risk premiums with correlated initial wealth and risk vectors. This matrix measure is the multivariate version of Rubinstein’s measures and is also the generalization of Duncan’s results for non-random initial wealth. The univariate and multivariate measures of risk aversion developed in this paper are applied to portfolio theory in Li and Ziemba.

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