Discussion Paper Details

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Title: Market Structure, Investment and Technical Efficiencies in Mobile Telecommunications

Author(s): Jonathan Elliott, Georges V. Houngbonon, Marc Ivaldi and Paul Scott

Publication Date: May 2021

Keyword(s): Antitrust Policy, Endogenous quality, infrastructure, market structure, Mobile telecommunications, queuing and scale efficiency

Programme Area(s): Industrial Organization

Abstract: We develop a model of competition in prices and infrastructural investment among mobile network providers. Market shares and service quality (download speed) are simultaneously determined, for demand affects the network load just as delivered quality affects consumer demand. While consolidation typically has adverse impacts on consumer surplus, economies of scale (which we derive from physical principles) push in the other direction, and we find that consumer surplus is maximized at a moderate number of firms, and that the optimal number of firms is higher for lower income consumers. Our modeling framework allows us to quantify the marginal social value of allocating more spectrum to mobile telecommunications, finding it is roughly five times an individual firm's willingness to pay for a marginal unit of spectrum.

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Bibliographic Reference

Elliott, J, Houngbonon, G, Ivaldi, M and Scott, P. 2021. 'Market Structure, Investment and Technical Efficiencies in Mobile Telecommunications'. London, Centre for Economic Policy Research.