The Economics of Product-Line Restrictions With an Application to the Network Neutrality Debate
We examine the welfare effects of product-line restrictions, such as those called for by some proponents of network neutrality regulation. We find that restricting a monopoly supplier to a single product has the following effects: (a) consumers who would otherwise have consumed a low-quality variant are excluded from the market; (b) consumers "in the middle" of the market consume a higher and more efficient quality; and (c) consumers at the top of the market consume a lower and less efficient quality. Total surplus may rise or fall. We also examine a duopoly model and find that imposition of a single-product restriction always reduces welfare. Absent the restriction, the two firms engage in head-to-head competition across full product lines. In some circumstances, the restriction induces the two firms to offer identical products. The resulting loss of variety reduces welfare. In other circumstances, the restriction induces the firms to offer non-overlapping, or vertically differentiated, products. Here, the resulting loss of competition harms both consumers and economic efficiency. Lastly, we find that, to the extent that the regulation is intended to eliminate low-quality products, it may fail. Even though any one firm can offer only a single product, various firms can collectively offer a menu of products.
|Date of creation:||28 Jul 2006|
|Contact details of provider:|| Postal: F502 Haas, Berkeley CA 94720-1922|
Phone: (510) 642-1922
Fax: (510) 642-5018
Web page: http://www.escholarship.org/repec/iber_cpc/
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Brander, James A & Eaton, Jonathan, 1984.
"Product Line Rivalry,"
American Economic Review,
American Economic Association, vol. 74(3), pages 323-334, June.
- James Brander & Jonathan Eaton, 1982. "Product Line Rivalry," Working Papers 519, Queen's University, Department of Economics.
- Caillaud Bernard & Hermalin Benjamin, 1993. "The Use of an Agent in a Signalling Model," Journal of Economic Theory, Elsevier, vol. 60(1), pages 83-113, June.
- Bernard Caillaud and Benjamin Hermalin., 1991. "The Use of an Agent in a Signalling Model," Economics Working Papers 91-183, University of California at Berkeley.
- Caillaud, Bernard & Hermalin, Benjamin, 1991. "The Use of an Agent in a Signaling Model," Department of Economics, Working Paper Series qt5481b61w, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Champsaur, Paul & Rochet, Jean-Charles, 1989. "Multiproduct Duopolists," Econometrica, Econometric Society, vol. 57(3), pages 533-557, May.
- CHAMPSAUR, Paul & ROCHET, Jean-Charles, "undated". "Multiproduct duopolists," CORE Discussion Papers RP 854, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Doyle, Chris & Smith, Jennifer C., 1998. "Market structure in mobile telecoms: qualified indirect access and the receiver pays principle," Information Economics and Policy, Elsevier, vol. 10(4), pages 471-488, December.
- De Fraja, Giovanni, 1996. "Product line competition in vertically differentiated markets," International Journal of Industrial Organization, Elsevier, vol. 14(3), pages 389-414, May.
- Varian, Hal R, 1985. "Price Discrimination and Social Welfare," American Economic Review, American Economic Association, vol. 75(4), pages 870-875, September.
- Jean-Charles Rochet & Jean Tirole, 2014. "Platform Competition in Two-Sided Markets," CPI Journal, Competition Policy International, vol. 10.
- Jean-Charles Rochet & Jean Tirole, 2003. "Platform Competition in Two-Sided Markets," Journal of the European Economic Association, MIT Press, vol. 1(4), pages 990-1029, 06.
- Jean-Charles Rochet & Jean Triole, 2002. "Platform competition in two sided markets," LSE Research Online Documents on Economics 24929, London School of Economics and Political Science, LSE Library.
- Jean-Charles Rochet & Jean Triole, 2002. "Platform Competition in Two Sided Markets," FMG Discussion Papers dp409, Financial Markets Group.
- Rochet, Jean-Charles & Tirole, Jean, 2003. "Platform Competition in Two-Sided Markets," IDEI Working Papers 152, Institut d'Économie Industrielle (IDEI), Toulouse.
- Simon P. Anderson & Stephen Coate, 2005. "Market Provision of Broadcasting: A Welfare Analysis," Review of Economic Studies, Oxford University Press, vol. 72(4), pages 947-972.
- Simon P. Anderson & Stephen Coate, 2003. "Market Provision of Broadcasting: A Welfare Analysis," Virginia Economics Online Papers 358, University of Virginia, Department of Economics.
- Caillaud, Bernard & Jullien, Bruno, 2003. " Chicken & Egg: Competition among Intermediation Service Providers," RAND Journal of Economics, The RAND Corporation, vol. 34(2), pages 309-328, Summer.
- Raymond J. Deneckere & R. Preston McAfee, 1996. "Damaged Goods," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 5(2), pages 149-174, 06.
- Deneckere, R. & McAfee, R.P., 1995. "Damaged Goods," Working papers 9508, Wisconsin Madison - Social Systems.
- Walras, L. & Holmes, P., 1980. "The state and the railways," Journal of Public Economics, Elsevier, vol. 13(1), pages 81-100, February.
- Avner Shaked & John Sutton, 1982. "Relaxing Price Competition Through Product Differentiation," Review of Economic Studies, Oxford University Press, vol. 49(1), pages 3-13.
- Michael L. Katz, 1980. "Multiplant Monopoly in a Spatial Market," Bell Journal of Economics, The RAND Corporation, vol. 11(2), pages 519-535, Autumn.
- Mussa, Michael & Rosen, Sherwin, 1978. "Monopoly and product quality," Journal of Economic Theory, Elsevier, vol. 18(2), pages 301-317, August.
- Gabszewicz, Jean J & Laussel, Didier & Sonnac, Nathalie, 2002. " Press Advertising and the Political Differentiation of Newspapers," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 4(3), pages 317-334.
- GABSZEWICZ, Jean J. & LAUSSEL, Didier & SONNAC, Nathalie, "undated". "Press advertising and the political differentiation of newspapers," CORE Discussion Papers RP 1561, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- A. Michael Spence, 1975. "Monopoly, Quality, and Regulation," Bell Journal of Economics, The RAND Corporation, vol. 6(2), pages 417-429, Autumn. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:cdl:compol:qt81r3b7xs. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Lisa Schiff)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.