In this paper we discuss the stochastic facility location model in which the distances between the facility and demand points are rectangular and each weight is normlilly distributed independent random variable with unknown mean and known variance. We are interested in rmding the value of information. In general, perfect information is not attainable, but sample information may be obtained. Thu...

Many decision models can be formulated as continuous minimax problems. The minimax framework injects robustness into the model. It is a tool that one can use to perform worst–case analysis, and it can provide considerable insight into the decision process. It is frequently used alongside other methods such as expected value optimization in order to identify extreme scenarios and strategies that...

The paper concerns the problem how to purchase the reinsurance in order to make the insurer and the reinsurance company’s total risk to be least under the expected value principle. When the insurer and reinsurance company take arbitrary risk measures, sufficient conditions for optimality of reinsurance contract are given within the restricted class of admissible contracts. Further, the explicit...

â â â  given companies’ dynamic responses to expected exchange rate changes, this article improves on current methods of measuring exposure to foreign exchange rate changes by breaking down the spot exchange rate changes into expected changes and unexpected changes. the currency risk exposure coefficients resulting from an empirical analysis of shanghai stock exchange a share listed companies...

Abstract It is increasingly easy to acquire a large amount of data about problem before formulating hypothesis. The idea exploratory analysis (EDA) predates this situation, but many researchers find themselves appealing EDA as an explanation what they are doing with these new resources. Yet there has been relatively little explicit work on or why it might be important. I canvass several positio...