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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. 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.
    3. 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.
    4. 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.
    5. 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.
    6. 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.
    7. 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.
    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. 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.

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