This paper presents an economic–probabilistic model for project selection and prioritization that enables necessary investments and potential benefits and their inherent variability to be quantified, thus providing a stochastic analysis of expected returns for projects. The model was developed in three steps: definition of criteria; definition of the most appropriate method to be used; and model building. A practical test to evaluate the applicability and usefulness of the model comprising a portfolio of investment projects at a power distribution company was conducted. The results show three major contributions of the proposed model: i) a set of sufficiently complete criteria, ii) the combined use of economic and probabilistic approaches w...