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In theory, free entry can lead to social inefficiency. We study the radio industry in a first attempt to quantify this inefficiency. Using cross-sectional data on advertising prices, the number of stations, and radio listening, we estimate the parameters of listeners' decisions and of firms'...
Persistent link: https://www.econbiz.de/10005353861
Theory predicts that in markets with increasing returns, the number of differentiated products, and the tendency to consume, will grow in market size. I document this phenomenon across 247 U.S. radio markets. By a mechanism that I term "preference externalities," an increase in the size of the...
Persistent link: https://www.econbiz.de/10005353994