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Abstract
Parametric weighing is a practical approach for project selection under risk. Only subsets of projects that satisfy budget constraints are considered, in order to maximize the sum of the weighted combinations of worth values minus risk estimations, for different combinations of weights. Decision support is provided via a parametric presentation of the selected subsets and the range of parameter (weight ratio) values over which each subset is optimal. Practical applicability of the approach is demonstrated via the study of a parametric weighing model. A solution scheme for the model has been installed on a personal (486) computing platform. The results of a computational study provide insight into the model and verify its applicability.