Alvin Roth and Lloyd Shapley have received in 2012 the Sveriges Riksbank prize in economic sciences in memory of Alfred Nobel, for their work on the centralized organization of some economic markets, which rely on the matching of agents of two different types (students and schools, for...

Most economic decisions involve agents who do not share the same information. Suppose a planner wishes to collect the agents? information and act for them. Is there a synthetic description of the set of all procedures available to the planner? Which are the criteria to be fulfilled by an optimal...