Concentration in advertising-supported online markets: an empirical approach
This paper examines the causes of market concentration in advertising-supported online markets such as sports, news, and email. In particular, it is the first paper to explore the relationship between concentration and product differentiation, economies of scale, market size, advertising, content costs, and multi-market ownership in online markets. As expected, differentiated large markets with low content costs and little multi-market ownership are less concentrated. Furthermore, I show that advertising-supported online markets have much in common with the magazine industry.
Volume (Year): 13 (2004)
Issue (Month): 6 ()
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References listed on IDEAS
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- Shane Greenstein, 1998. "Universal Service in the Digital Age: The Commercialization and Geography of U.S. Internet Access," NBER Working Papers 6453, National Bureau of Economic Research, Inc.
- Steven T. Berry & Joel Waldfogel, 1999.
"Free Entry and Social Inefficiency in Radio Broadcasting,"
RAND Journal of Economics,
The RAND Corporation, vol. 30(3), pages 397-420, Autumn.
- Steven Berry & Joel Waldfogel, 1996. "Free Entry and Social Inefficiency in Radio Broadcasting," NBER Working Papers 5528, National Bureau of Economic Research, Inc.
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