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The Relationship between the Costs and Prices of a Multi-product Monopoly: The Role of Price-Cap Regulation

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  • Fraser, Rob

Abstract

This paper examines the role of price-cap regulation in influencing the relationship between the costs and prices of a multi-product monopoly. Based on a simple model of mark-up pricing, a combination of analytical and numerical analysis is used to show how cost increases among the firm's products can cause a divergence of prices from the Ramsey structure if the cost increases are non-uniform or if the demand elasticities for the products are non-uniform. However, in the absence of additional cost changes, profit-maximising prices which are subject to a price-cap constraint converge to the Ramsey structure if the previous period's quantities are used as weights in the firm's price-cap constraint. Consequently, given this formulation of the firm's price-cap constraint, only in situations of recurring cost changes are prices likely to show on-going divergence from the Ramsey structure. Copyright 1995 by Kluwer Academic Publishers

Suggested Citation

  • Fraser, Rob, 1995. "The Relationship between the Costs and Prices of a Multi-product Monopoly: The Role of Price-Cap Regulation," Journal of Regulatory Economics, Springer, vol. 8(1), pages 23-31, July.
    • Handle: RePEc:kap:regeco:v:8:y:1995:i:1:p:23-31
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    Cited by:

    1. Egerer, Jonas & Rosellón, Juan & Schill, Wolf-Peter, 2015. "Power System Transformation toward Renewables: An Evaluation of Regulatory Approaches for Network Expansion," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 36(4), pages 105-128.
    2. Dagobert Brito & Juan Rosellón, 2011. "Lumpy Investment in Regulated Natural Gas Pipelines: An Application of the Theory of the Second Best," Networks and Spatial Economics, Springer, vol. 11(3), pages 533-553, September.
    3. Juan Rosellón & Hannes Weigt, 2011. "A Dynamic Incentive Mechanism for Transmission Expansion in Electricity Networks: Theory, Modeling, and Application," The Energy Journal, , vol. 32(1), pages 119-148, January.
    4. Valentini, Edilio, 2015. "Indirect taxation, public pricing and price cap regulation: A synthesis," Economics - The Open-Access, Open-Assessment E-Journal (2007-2020), Kiel Institute for the World Economy (IfW Kiel), vol. 9, pages 1-39.
    5. Rosellon, Juan & Halpern, Jonathan, 2001. "Regulatory reform in Mexico's natural gas industry : liberalization in the context of a dominant upstream incumbent," Policy Research Working Paper Series 2537, The World Bank.
    6. Hesamzadeh, M.R. & Rosellón, J. & Gabriel, S.A. & Vogelsang, I., 2018. "A simple regulatory incentive mechanism applied to electricity transmission pricing and investment," Energy Economics, Elsevier, vol. 75(C), pages 423-439.
    7. Anne Neumann & Juan Rosellón & Hannes Weigt, 2015. "Removing Cross-Border Capacity Bottlenecks in the European Natural Gas Market—A Proposed Merchant-Regulatory Mechanism," Networks and Spatial Economics, Springer, vol. 15(1), pages 149-181, March.
    8. Ingo Vogelsang, 1999. "Optimal Price Regulation for Natural and Legal Monopolies," Economía Mexicana NUEVA ÉPOCA, CIDE, División de Economía, vol. 0(1), pages 5-43, January-J.
    9. Ramirez, Jose Carlos & Rosellon, Juan, 2002. "Pricing natural gas distribution in Mexico," Energy Economics, Elsevier, vol. 24(3), pages 231-248, May.
    10. Armstrong, Mark & Sappington, David E.M., 2007. "Recent Developments in the Theory of Regulation," Handbook of Industrial Organization, in: Mark Armstrong & Robert Porter (ed.), Handbook of Industrial Organization, edition 1, volume 3, chapter 27, pages 1557-1700, Elsevier.

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