abstract project management in construction industry, in many cases, is imperfect with respect to the integration of occupational health and safety (ohs) risks. this imperfection exhibits itself as complications affecting the riskiness of industrial procedures and is illustrated usually by poor awareness of ohs within project teams. difficulties on ohs regularly came about in the construction i...

Financial returns exhibit stylized facts such as leptokurtosis, skewness and heavy-tailness. Regarding this behavior, in this paper, we apply multivariate generalized hyperbolic (mGH) distribution for portfolio modeling and performance evaluation, using conditional value at risk (CVaR) as a risk measure and allocating best weights for portfolio selection. Moreover, a robust portfolio optimizati...

introduction: the greatest part of constructed dams belongs to embankment dams and there are many examples of their failures throughout history. about one-third of the world’s dam failures have been caused by flood overtopping, which indicates that flood overtopping is an important factor affecting reservoir projects’ safety. moreover, because of a poor understanding of the randomness of floods...

Numerical evaluation of ruin probabilities in the classical risk model is an important problem. If claim sizes are heavy-tailed, then such evaluations are challenging. To overcome this, an attractive way is to approximate the claim sizes with a phase-type distribution. What is not clear though is how many phases are enough in order to achieve a specific accuracy in the approximation of the ruin...

www.frontiersinecology.org © The Ecological Society of America T number of marine reserves is growing worldwide (Wood et al. 2008), so it is prudent to consider how to assess whether such reserves achieve their goals. The stated goals of marine reserves vary widely, but fundamentally all reserves are designed to achieve some combination of preserving biodiversity and supporting sustainable fish...

Eliciting the utility of a decision maker is difficult. In this paper, we develop a flexible decision making framework, which uses the concept of utility robustness to address the problem of ambiguity and inconsistency in utility assessments. The ideas are developed by giving a probabilistic interpretation to utility and marginal utility functions. Boundary and additional conditions are used to...

Public workfare programs have been important counter-cyclical program interventions in both developed and developing countries. In the developing world generally and in Africa and Asia particularly, public works programs have been significant policy instruments for mitigating the negative effects of climatic and systemic risks on poor farmers and unskilled and semi-skilled workers. The paper fi...