In this paper, I construct a mathematical model based on the Shannon-Hartley theorem and find profit-maximizing conditions for a mobile operator as for its channel bandwidth, the number of the channels, the S/N ratio, density of base stations in congested areas and the number of its subscribers....

This study presents an economic analysis of Japan's attempt to address the geographical digital divide problem for broadband and mobile telephone services. To receive broadband service local inhabitants make voluntary contributions, which are matched by a municipal subsidy. The approach is...