Borgers, Tilman; Hernanco-Veciana, Angel; Krohmer, Daniel - Center for Mathematical Studies in Economics and … - 2010
The paper introduces a notion of complementarity (substitutability) of two signals which requires that in all decision … characterization which relates complementarity and substitutability to a Blackwell comparison of two auxiliary signals. In a setting … of complementarity and substitutability. We demonstrate how these conditions extend to more general settings. …