Handset subsidies are prominent in many mobile markets, and are often justified on the basis of network externalities arising from new subscribers joining with a benefit to existing subscribers in addition to their private valuation. An associated argument is that a tax on termination to fund...

Without regulation, market power in mobile termination is likely to result in mobile termination rates (MTRs) in excess of costs and cross-subsidised prices for mobile subscription/handsets. Mobile network operators (MNOs) argue that subsidisation is efficient, being justified by, inter alia, a...

A potential entrant wishes to offer a long-distance service by establishing its own long-distance 'upstream' facility and using the incumbent's local ('downstream') network to provide reticulation of its calls, and the issue is to determine an efficient interconnection price for the entrant's...