This paper develops a model in which market structure is determined endogenously by the choice of intermediation mode …. We consider two representative business modes of intermediation that are widely used in real-life markets: one is a … other. In our model, buyers and sellers can simultaneously search in an outside market and use the intermediation service …

The object of this paper is to discuss on-line intermediation from the perspective of two-sided markets. It builds a … simple model of the intermediation activity when trading partners are involved in a commercial relationship and uses it to … part concentrates on a monopoly intermediation service and discusses both efficient pricing and monopoly pricing. The …