NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Alon Eizenberg

Hebrew University of Jerusalem
Mount Scopus Campus, #4209
Jerusalem, Israel 91905

E-Mail: aloneiz@mscc.huji.ac.il

NBER Working Papers and Publications

October 2015Optimal Product Variety in Radio Markets
with Steven Berry, Joel Waldfogel: w21621
A vast theoretical literature shows that inefficient market structures may arise in free entry equilibria. The inefficiency may manifest itself in the number, variety, or quality of products. Previous empirical work demonstrated that excessive entry may obtain in local radio markets. Our paper extends that literature by relaxing the assumption that stations are symmetric, allowing instead for endogenous station differentiation along both horizontal and vertical dimensions. Importantly, we allow station quality to be an unobserved station characteristic. We compute the optimal market structures in local radio markets and find that, in most broadcasting formats, a social planner who takes into account the welfare of market participants (stations and advertisers) would eliminate 50%-60% of th...

Published: Steven Berry & Alon Eizenberg & Joel Waldfogel, 2016. "Optimal product variety in radio markets," RAND Journal of Economics, RAND Corporation, vol. 47(3), pages 463-497, 08. citation courtesy of

September 2014Fixed Costs and the Product Market Treatment of Preference Minorities
with Steven Berry, Joel Waldfogel: w20488
It is well documented that, in the presence of substantial fixed costs, markets offer preference majorities more variety than preference minorities. This fact alone, however, does not demonstrate the market outcome is in any way biased against preference minorities. In this paper, we clarify the sense in which the market outcome may in fact be biased against preference minorities, and we provide some conditions for such bias to occur. We then estimate the degree of bias in a particular industry using an empirical model of entry into radio broadcasting with two types of listeners, a preference majority and a minority, and the two types of stations targeting those respective listeners. Listening model estimates are used to infer fixed costs, which can then be used to find optimal station con...

Published: Steven Berry & Alon Eizenberg & Joel Waldfogel, 2016. "Fixed Costs and the Product Market Treatment of Preference Minorities," The Journal of Industrial Economics, vol 64(3), pages 466-493. citation courtesy of

 
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