Reference
Jeff Colvin (USPS), and Mary Perkins (Howard University), “Network Externalities and the Digital Divide”, Seventh bi-annual conference on The Economics of the Postal Sector in the Digital World, Toulouse, France, March 22–23, 2012.
See also
Published in
Seventh bi-annual conference on The Economics of the Postal Sector in the Digital World, Toulouse, France, March 22–23, 2012