Spectrum Efficiency at the Extensive and Intensive Edges

Future 5G architectures will need access to additional spectrum either at the extensive edge (accessing hitherto unused spectrum or refarming assigned spectrum) or at the intensive edge (making more productive use of used spectrum). A full understanding and pursuit of spectrum efficiency dividends will be a deciding factor in the successful deployment of these future wireless networks. A stylized general equilibrium model illustrates the type of trade-offs involved with thinking about efficient spectrum assignments at the intensive edge and draws inference for the type of spectrum management reforms that would best accommodate the spectrum needs of the next generation of radio networks.