Popis: |
Regular choice systems and their random utility representations are investigated. A generalization of the derivation of the Block–Marschak conditions, based on the Mobius function of a partial order is presented. The technique is demonstrated in connection with two examples. The first is similar to complete choice data. In the second example a complete characterization of the ensuing polytope is obtained including a procedure to explicitly derive a convex representation of a data matrix if it is in the polytope. |