We present a model of spatial competition where transport costs are dependent on the price the monopolist sets in the market. Several specifications of the transport costs are modeled. We find that, in contrast with a standard Hotelling model, the monoplist decides to cover all the market...

The study of organizational choice is crucial to the understanding of firms' efficiency. We consider this issue applied to contracts on health services. In particular, we analyze the circumstances under which it is better for an insurer to contract with both the hospital and the physician...