Multicriteria assignment modeling: Making explicit the determinants of mode or path choice


Type de document
Résumé / Abstract
In a multicriteria choice model, each variant of a product is characterized by means of several attributes. The choice of a consumer between the competing variants is determined by the consumer's own trade-offs between the attributes, e.g. the trade-off between time and money in the cost vs. Time, two-criteria model. This raises several equilibrium issues: (I) congestion phenomena determine a supply-equilibrium between the variants, (II) the demand volume may well depend on the level of service provided by the variants, (III) as this is true at the disaggregate level, the demand structure may be modified as well as its overall volume. The paper introduces a unifying analysis framework. Infinite-dimensional and finite-dimensional formulations are described and assessed. Then the available algorithms are summarized. Lastly, an econometric perspective is given on the estimation of heterogeneous preferences. Throughout the paper, a two-link example is developed to illustrate every feature.

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