Background risk, bivariate risk attitudes, and optimal prevention

Minggao Xue and Wen Cheng

Mathematical Social Sciences, 2013, vol. 66, issue 3, 390-395

Abstract: This paper extends Eeckhoudt et al.’s (2012) results for precautionary effort to bivariate utility function framework. We establish an equivalence between the agent’s precautionary effort motive and the signs of successive cross-derivatives of the bivariate utility function. We show that the introduction (or deterioration) of an independent background risk induces more prevention to protect against wealth loss provided the individual exhibits correlation aversion of some given order. The conditions on the individual’s risk preferences are given to generate some specific prevention behaviors in the univariate framework with multiplicative risks. Our conclusion also indicates that an increase in the correlation between wealth risk and background risk leads to a reduction in optimal prevention.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matsoc:v:66:y:2013:i:3:p:390-395

DOI: 10.1016/j.mathsocsci.2013.08.006

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