The aim of this paper is to generalize the‎‎notion of pseudo-almost valuation domains to arbitrary‎ ‎commutative rings‎. ‎It is shown that the classes of chained rings‎ ‎and pseudo-valuation rings are properly contained in the class of‎ ‎pseudo-almost valuation rings; also the class of pseudo-almost‎ ‎valuation rings is properly contained in the class of quasi-local‎ ‎rings with linearly ordere...

despite of fifteen years old legislation of environmental impact assessment (eia) in iran, investigations show that there are some kinds of shortcoming in the effectiveness and efficiency of these assessments. although some of these failures were attributed by weakness in the administrative structure, but methodological shortcomings and lack of transparency had an effective role in the these pr...

Credit risk has become a topical issue since the 2007 Credit Crisis, particularly for its impact on the valuation of OTC derivatives. This becomes critical when the credit risk of entities involved in a contract either as underlying or counterparty become highly correlated as is the case during macroeconomic shocks. It impacts the valuation of such contracts through an additional term, the cred...

The present paper reviews activity in environmental valuation by examining trends in publication rates over the past three decades. It also provides an overview of the demand for environmental valuation by academic markets and by policy markets. The results of this historical analysis suggest that there is not as much use of environmental valuation in policy analysis as could be expected given ...

This paper investigates a model featuring a monopolist seller and a buyer, with an uncertain valuation for the seller’s product. The seller chooses an information system (“IS”), allowing the buyer to receive a private signal, potentially correlated with her valuation. The cost of the IS is proportional to its precision, measured by the mutual information between the distributions of the buyer’s...

Computational psychiatry aims to apply mathematical and computational techniques to help improve psychiatric care. To achieve this, the phenomena under scrutiny should be within the scope of formal methods. As emotions play an important role across many psychiatric disorders, such computational methods must encompass emotions. Here, we consider formal valuation accounts of emotions. We focus on...

This article describes forward-start CDO’s (FCDO’s), options to start CDO’s, and their risk-neutral valuation. The valuation method represents an extension of previous work Walker (2005, 2006) on a static model for the valuation of ordinary CDO’s to a model containing the necessary dynamics. The focus of the work will be to develop a model with sufficient flexibility that it can be used to cali...