基于权值的双层多损失条件风险值模型

蒋敏

系统科学与数学 ›› 2013, Vol. 33 ›› Issue (10) : 1178-1188.

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PDF(413 KB)
系统科学与数学 ›› 2013, Vol. 33 ›› Issue (10) : 1178-1188. DOI: 10.12341/jssms12194
论文

基于权值的双层多损失条件风险值模型

    蒋敏
作者信息 +

BILEVEL MULTI-LOSS CONDITIONAL VALUE-AT-RISK MODEL BASED ON THE WEIGHTS

    JIANG Min
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文章历史 +

摘要

条件风险值模型是风险管理中的一种重要工具.文章研究了一种具有上下层决策的多损失条件风险值模型,引入了基于权值的多个损失函数下的α-VaR损失值(最小风险值)和α-CVaR损失值(最小风险值对应的条件期望损失值或条件风险价值度量)概念,提出了基于权值的双层多损失条件风险值模型,该模型的目标是求上下层的基于权值的多损失α-CVaR达最小的最优解,并证明了它可以通过另一个较容易求解的双层规划模型获得最优解. 最后,给出含一个制造商与零售商的供应链关于一种产品的定价与订购的双层条件风险值模型,该模型可以求出供过于求和供不应求风险最小下的制造商最小批发价和零售商最优订购量.

Abstract

The conditional value-at-risk model is an important tool in risk man-agement. This paper studies a multi-loss conditional value-at-risk model with upper
and lower decision-making. We introduce the concept of -VaR loss value (minimumvalue at risk) and -CVaR loss value (minimum risk value  orresponding to the loss of value of the conditional expectation or conditional value at risk measure) of a multi-loss function based on the weights. We propose a bilevel multi-loss conditional value-at-risk model based on the weights. The objective is to find out an optimal solution to the model of upper level and lower level value of multi-loss -the CVaR’s based on the weights. We show that it can be solved more easily through another bilevel programming model to obtain the optimal solution. Finally, we give a bilevel conditional value-at-risk model, including pricing and ordering of a supply chain to manufacturers ad retailers on a product model calculated the minimum wholesale price of oversupply and shortage of risk minimization under the  manufacturer and retailers excellent order amount.

关键词

条件风险值 / 多损失 / 双层规划 / 权值.

引用本文

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蒋敏. 基于权值的双层多损失条件风险值模型. 系统科学与数学, 2013, 33(10): 1178-1188. https://doi.org/10.12341/jssms12194
JIANG Min. BILEVEL MULTI-LOSS CONDITIONAL VALUE-AT-RISK MODEL BASED ON THE WEIGHTS. Journal of Systems Science and Mathematical Sciences, 2013, 33(10): 1178-1188 https://doi.org/10.12341/jssms12194
中图分类号: 91A80   
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