The issue of costing and pricing in the telecommunications industry has been hotly debated for the last twenty years. Indeed, we are still wrestling today over the cost of the local exchange for access by interexchange and competitive local exchange carriers, as well as for universal service funding. Это и многое другое вы найдете в книге The New Investment Theory of Real Options and its Implication for Telecommunications Economics (James Alleman, Eli Noam)