In this paper we introduce a multi-stage decision making procedure where decision makers sort the alternatives by means of a fixed set of linguistic categories, each one has associated a numerical score. First we average the scores obtained by each alternative and we consider the associated collective preference. Then, we obtain a distance between each individual preference and the collective o...

We model a competition between two debaters trying to capture the attention of a decision maker. In the model, the decision maker can only choose alternatives that are on the agenda and the agenda is endogenous. The debaters compete to put their alternatives on the agenda by participating in all-pay-auctions for a …nite number of attention slots. We compare simultaneous debates, in which all in...

We present a new method for quantitatively documenting concerns for economic fairness. In particular we focus on the method's potential for identifying variation in prosociality within and across societies. Specifically, we conducted multiple dictator games per player in two small-scale societies. Each game presented the decision maker with a choice between an equitable and an inequitable payof...

Structured expert judgment (SEJ) is used to quantify the uncertainty of nonindigenous fish (bighead carp [Hypophthalmichthys nobilis] and silver carp [H. molitrix]) establishment in Lake Erie. The classical model for structured expert judgment model is applied. Forming a weighted combination (called a decision maker) of experts' distributions, with weights derived from performance on a set of c...

Often, preferences are driven by comparisons with choices not made. Preferences of a decision-maker over a set of options may arise from regret, i.e., from comparisons with alternatives forgone by the decision maker. This is natural when the decision maker has to choose between two options with random outcomes. Once the uncertainty is resolved he will know what outcome he received, but also wha...

Preferences of a decision-maker over a set of options may arise from regret, i.e., from comparisons with alternatives forgone by the decision maker. This is natural when the decision maker has to choose between two options with random outcomes. Once the uncertainty is resolved he will know what outcome he received, but also what outcome he could have received had he chosen the alternative optio...

The new method for the construction of partial order on the set of multicriteria alternatives is presented. This method belongs to the family of Verbal Decision Analysis methods and gives a more efficient means of problem solution. The method is based on psychologically valid operations for information elicitation from a decision maker: comparisons of two distances between the evaluations on th...

A problem that sometimes occurs in multiobjective optimization is the existence of a large set of Pareto-optimal solutions. Hence the decision making based on selecting a unique preferred solution becomes difficult. Considering models with rational B-efficiency relieves some of the burden from the decision maker by shrinking the solution set. This paper focuses on solving multiobjective optimiz...

It happens more and more often in decision aiding situations to be faced with ordinal or nominal information concerning the alternatives that are considered by a client/decision maker (hereafter we will use the term decision maker DM). By the term ordinal or nominal information we intend the fact that evaluation on attributes, descriptors, indexes, criteria etc. may be expressed on ordinal or n...

In Multiple Criteria Decision Analysis, the preferences of the decision maker regarding each criterion are classically modelled by a utility function depending on one single variable representing the point of view attached to the criteria. There are situations in which the preferences regarding an attribute depend on more variables. In this case, we propose an extended model taking into account...