Program Patterns and Preferences, and the Workability of Competition in Radio Broadcasting

Peter O. Steiner
The Quarterly Journal of Economics

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Steiner (1952) enunciated the duplication principle whereby media offerings tend to concentrate (and double up) in genres with large consumer interest. Put succinctly by example, if 70% of media consumers will only listen to country music, and 30% will only listen to rock, and if there is only room for two radio stations (due to spectrum constraints), then the market equilibrium will have two country stations. A two-channel monopolist will provide one channel catering to each type and so cover the full diversity of tastes. cites Program Patterns and Preferences, and the Workability of Competition in Radio Broadcasting on 6/3/2019, 2:26:44 PM