This work describes the potential gain of spectrum sharing between different mobile technologies. A new bandwidth allocation technique is introduced, allows coexistence and overlap between old and new (relative) mobile generations, operating over the same frequency band. The new proposed...

The paper discusses the impact of scarcity of frequency spectrum on the performance of the mobile telecommunications industry. An oligopoly model with endogenous sunk costs illustrates the trade off between ex ante extraction of oligopoly rents and market entry of firms. The determination of the...