Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Monday, January 24, 2011

Hotelling competition with multi-purchasing

Posted by D. Daniel Sokol

Simon P. Anderson (Dept. of Economics, University of Virginia), Øystein Foros (Dept. of Finance and Management Science, Norwegian School of Economics and Business Administration), and Hans Jarle Kind (Dept. of Finance and Management Science, Norwegian School of Economics and Business Administration) address Hotelling competition with multi-purchasing.

ABSTRACT: We analyze a Hotelling model where consumers either buy one out of two goods (single-purchase) or both (multi-purchase). The firms’ pricing strategies turn out to be fundamentally different if some consumers multi-purchase compared to if all single-purchase. Prices are strategic complements under single-purchase, and increase with quality. In a multi-purchase regime, in contrast, prices are strategically independent because firms then act monopolistically by pricing the incremental benefit to marginal consumers. Furthermore, prices can decrease with quality due to overlapping characteristics. Higher preference heterogeneity increases prices and profits in equilibrium with single-purchase, but decreases them with multi-purchase.

http://lawprofessors.typepad.com/antitrustprof_blog/2011/01/hotelling-competition-with-multi-purchasing-.html

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