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Families of update rules for non-additive measures: Applications in pricing risks

Identifieur interne : 001793 ( Istex/Corpus ); précédent : 001792; suivant : 001794

Families of update rules for non-additive measures: Applications in pricing risks

Auteurs : Virginia R. Young

Source :

RBID : ISTEX:5B1983EC190CE726629E0B3BCE0D9FFB873391B8

Abstract

Wang et al. [Axiomatic characterization of insurance prices, Insurance: Mathematics and Economics 21 (1997) 173–183] propose axioms for prices in an insurance market. Chateauneuf et al. [Choquet pricing for financial markets with frictions, Mathematical Finance 6 (1996) 323–330] propose similar axioms for prices in a financial market with frictions. As a result of these axioms, market prices can be represented by the Choquet integral with respect to a non-additive measure. In both insurance and financial pricing, it is important to update prices in light of newly available information. This updating can be achieved by conditioning the underlying non-additive measure. Denneberg [Conditioning (updating) non-additive measures, Annals of Operations Research 52 (1994) 21–42] studies three conditioning rules for updating non-additive measures. Two of these update rules, the Bayes' and the Dempster-Shafer, are extreme cases of a family of update rules, [Gilboa, Schmeidler, Updating ambiguous beliefs, Journal of Economic Theory 59 (1993) 33–49]. In this paper, we introduce a family of update rules more general than the one of Gilboa and Schmeidler. We also show how to embed the general and Dempster-Shafer update formulas in another family of update rules. We examine the properties of these two families of update rules and the resulting conditional prices.

Url:
DOI: 10.1016/S0167-6687(98)00017-1

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ISTEX:5B1983EC190CE726629E0B3BCE0D9FFB873391B8

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<ce:e-address>vyoung@bus.wisc.edu</ce:e-address>
</ce:author>
<ce:affiliation>
<ce:textfn>School of Business, University of Wisconsin - Madison, Madison, WI 53706, USA</ce:textfn>
</ce:affiliation>
<ce:footnote id="FN1">
<ce:label></ce:label>
<ce:note-para>Tel.: +1 608 265 3494; fax: +1 608 263 3142</ce:note-para>
</ce:footnote>
</ce:author-group>
<ce:abstract>
<ce:section-title>Abstract</ce:section-title>
<ce:abstract-sec>
<ce:simple-para>Wang et al. [Axiomatic characterization of insurance prices, Insurance: Mathematics and Economics 21 (1997) 173–183] propose axioms for prices in an insurance market. Chateauneuf et al. [Choquet pricing for financial markets with frictions, Mathematical Finance 6 (1996) 323–330] propose similar axioms for prices in a financial market with frictions. As a result of these axioms, market prices can be represented by the Choquet integral with respect to a non-additive measure. In both insurance and financial pricing, it is important to update prices in light of newly available information. This updating can be achieved by conditioning the underlying non-additive measure. Denneberg [Conditioning (updating) non-additive measures, Annals of Operations Research 52 (1994) 21–42] studies three conditioning rules for updating non-additive measures. Two of these update rules, the Bayes' and the Dempster-Shafer, are extreme cases of a family of update rules, [Gilboa, Schmeidler, Updating ambiguous beliefs, Journal of Economic Theory 59 (1993) 33–49]. In this paper, we introduce a family of update rules more general than the one of Gilboa and Schmeidler. We also show how to embed the general and Dempster-Shafer update formulas in another family of update rules. We examine the properties of these two families of update rules and the resulting conditional prices.</ce:simple-para>
</ce:abstract-sec>
</ce:abstract>
<ce:keywords>
<ce:section-title>Keywords</ce:section-title>
<ce:keyword>
<ce:text>Pricing principle</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>Choquet integral</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>Bayes' update rule</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>Dempster-Shafer update rule</ce:text>
</ce:keyword>
<ce:keyword>
<ce:text>Conditional probability</ce:text>
</ce:keyword>
</ce:keywords>
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<title>Families of update rules for non-additive measures: Applications in pricing risks</title>
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<namePart type="given">Virginia R.</namePart>
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<affiliation>School of Business, University of Wisconsin - Madison, Madison, WI 53706, USA</affiliation>
<affiliation>E-mail: vyoung@bus.wisc.edu</affiliation>
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<abstract lang="en">Wang et al. [Axiomatic characterization of insurance prices, Insurance: Mathematics and Economics 21 (1997) 173–183] propose axioms for prices in an insurance market. Chateauneuf et al. [Choquet pricing for financial markets with frictions, Mathematical Finance 6 (1996) 323–330] propose similar axioms for prices in a financial market with frictions. As a result of these axioms, market prices can be represented by the Choquet integral with respect to a non-additive measure. In both insurance and financial pricing, it is important to update prices in light of newly available information. This updating can be achieved by conditioning the underlying non-additive measure. Denneberg [Conditioning (updating) non-additive measures, Annals of Operations Research 52 (1994) 21–42] studies three conditioning rules for updating non-additive measures. Two of these update rules, the Bayes' and the Dempster-Shafer, are extreme cases of a family of update rules, [Gilboa, Schmeidler, Updating ambiguous beliefs, Journal of Economic Theory 59 (1993) 33–49]. In this paper, we introduce a family of update rules more general than the one of Gilboa and Schmeidler. We also show how to embed the general and Dempster-Shafer update formulas in another family of update rules. We examine the properties of these two families of update rules and the resulting conditional prices.</abstract>
<subject>
<genre>Keywords</genre>
<topic>Pricing principle</topic>
<topic>Choquet integral</topic>
<topic>Bayes' update rule</topic>
<topic>Dempster-Shafer update rule</topic>
<topic>Conditional probability</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Insurance Mathematics and Economics</title>
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<title>INSUMA</title>
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<dateIssued encoding="w3cdtf">19981031</dateIssued>
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<identifier type="ISSN">0167-6687</identifier>
<identifier type="PII">S0167-6687(00)X0020-0</identifier>
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<date>19981031</date>
<detail type="volume">
<number>23</number>
<caption>vol.</caption>
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<detail type="issue">
<number>1</number>
<caption>no.</caption>
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<extent unit="issue pages">
<start>1</start>
<end>110</end>
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