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Curing Sinus Headaches and Tying Law: An Empirical Analysis of Bundling Decongestants and Pain Relievers

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  • David S. Evans
  • Michael Salinger

Abstract

We apply and extend the cost-based approach to bundling and tying under competition developed in Evans and Salinger (2004) to over-the-counter pain relievers and cold medicines. We document that consumers pay much less for tablets with multiple ingredients than they would if they bought tablets with each ingredient separately. We then decompose the sources of these savings into marginal cost savings and a component that reflects fixed costs of product offerings. The analysis both documents substantial economies of bundling and illustrates the sort of cost analysis that is necessary for understanding tying.

Suggested Citation

  • David S. Evans & Michael Salinger, 2005. "Curing Sinus Headaches and Tying Law: An Empirical Analysis of Bundling Decongestants and Pain Relievers," CESifo Working Paper Series 1519, CESifo Group Munich.
  • Handle: RePEc:ces:ceswps:_1519
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    File URL: http://www.cesifo-group.de/DocDL/cesifo1_wp1519.pdf
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    1. Ariel Pakes & Michael Ostrovsky & Steven Berry, 2007. "Simple estimators for the parameters of discrete dynamic games (with entry/exit examples)," RAND Journal of Economics, RAND Corporation, vol. 38(2), pages 373-399, June.
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    3. David S. Evans & Michael A. Salinger, 2008. "THE ROLE OF COST IN DETERMINING WHEN FIRMS OFFER BUNDLES -super-," Journal of Industrial Economics, Wiley Blackwell, vol. 56(1), pages 143-168, March.
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    5. Chaim Fershtman & Ariel Pakes, 2000. "A Dynamic Oligopoly with Collusion and Price Wars," RAND Journal of Economics, The RAND Corporation, vol. 31(2), pages 207-236, Summer.
    6. Baumol, William J, 1982. "Contestable Markets: An Uprising in the Theory of Industry Structure," American Economic Review, American Economic Association, vol. 72(1), pages 1-15, March.
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    8. Timothy F. Bresnahan & Peter C. Reiss, 1987. "Do Entry Conditions Vary across Markets?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 18(3, Specia), pages 833-882.
    9. Evans, David S & Padilla, Atilano Jorge, 2004. "Designing Antitrust Rules for Assessing Unilateral Practices: A Neo-Chicago Approach," CEPR Discussion Papers 4625, C.E.P.R. Discussion Papers.
    10. Morrison, Steven A & Winston, Clifford, 1987. "Empirical Implications and Tests of the Contestability Hypothesis," Journal of Law and Economics, University of Chicago Press, vol. 30(1), pages 53-66, April.
    11. Gregory Crawford, 2008. "The discriminatory incentives to bundle in the cable television industry," Quantitative Marketing and Economics (QME), Springer, vol. 6(1), pages 41-78, March.
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