Economies of Scale and Scope in Network Industries: Lessons for the UK water and sewerage sectors
Many studies of the water and sewerage industries place significant importance on the benefits of economies of scale and scope and how these relate to vertically integrated firms. We have re-examined the early literature on scale and scope economies and find that these studies do not implicitly preclude non-integrated firms from fully utilising assets for multi-product activities; they can still reap scope economies through trading in the open market. Further, we demonstrate difficulties in separating these two types of economies when assessing firm performance. Trade-offs between governance and production costs are a key issue in determining the value of vertically integrated firms that may undergo divestiture. We discuss the present policy debate regarding the optimal structure of the water and sewerage markets in England and Wales in the light of this, and recommend avenues of research that will help determine the optimal policy.
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.:
- Nancy L. Rose & Andrea Shepard, 1997.
"Firm Diversification and CEO Compensation: Managerial Ability or Executive Entrenchment?,"
RAND Journal of Economics,
The RAND Corporation, vol. 28(3), pages 489-514, Autumn.
- Nancy L. Rose & Andrea Shepard, 1994. "Firm Diversification and CEO Compensation: Managerial Ability or Executive Entrenchment?," NBER Working Papers 4723, National Bureau of Economic Research, Inc.
- Andrei Shleifer, 1985. "A Theory of Yardstick Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(3), pages 319-327, Autumn.
- John Kwoka & Michael Pollitt & Sanem Sergici, 2010. "Divestiture policy and operating efficiency in U.S. electric power distribution," Journal of Regulatory Economics, Springer, vol. 38(1), pages 86-109, August.
- Kwoka, J. & Ozturk, S. & Pollitt, M.G., 2008. "Divestiture Policy and Operating Efficiency in U.S. Electric Power Distribution," Cambridge Working Papers in Economics 0835, Faculty of Economics, University of Cambridge.
- Newbery, David M & Pollitt, Michael G, 1997. "The Restructuring and Privatization of Britain's CEGB--Was It Worth It?," Journal of Industrial Economics, Wiley Blackwell, vol. 45(3), pages 269-303, September.
- Gilland, Bernard, 2002. "World population and food supply: can food production keep pace with population growth in the next half-century?," Food Policy, Elsevier, vol. 27(1), pages 47-63, February.
- Torres, Marcelo & Morrison Paul, Catherine J., 2006. "Driving forces for consolidation or fragmentation of the US water utility industry: A cost function approach with endogenous output," Journal of Urban Economics, Elsevier, vol. 59(1), pages 104-120, January.
- Garcia, Serge & Moreaux, Michel & Reynaud, Arnaud, 2007. "Measuring economies of vertical integration in network industries: An application to the water sector," International Journal of Industrial Organization, Elsevier, vol. 25(4), pages 791-820, August.
- Garcia, Serge & Moreaux, Michel & Reynaud, Arnaud, 2004. "Measuring Economies of Vertical Integration in Network Industries: an Application to the Water Sector," IDEI Working Papers 255, Institut d'Économie Industrielle (IDEI), Toulouse.
- Willig, Robert D, 1979. "Multiproduct Technology and Market Structure," American Economic Review, American Economic Association, vol. 69(2), pages 346-351, May.
- Pollitt, M.G., 1999. "A survey of the liberalisation of public enterprises in the UK since 1979," Cambridge Working Papers in Economics 9901, Faculty of Economics, University of Cambridge.
- Robert E. Lucas Jr., 1978. "On the Size Distribution of Business Firms," Bell Journal of Economics, The RAND Corporation, vol. 9(2), pages 508-523, Autumn.
- John Kwoka, 2008. "Restructuring the U.S. Electric Power Sector: A Review of Recent Studies," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 32(3), pages 165-196, May.
- Teece, David J., 1980. "Economies of scope and the scope of the enterprise," Journal of Economic Behavior & Organization, Elsevier, vol. 1(3), pages 223-247, September.
- Triebs, T.P. & Pollitt, M.G. & Kwoka, J.E., 2010. "The Direct Costs and Benefits of US Electric Utility Divestitures," Cambridge Working Papers in Economics 1049, Faculty of Economics, University of Cambridge.
- Thomas P. Triebs & Michael G. Pollitt, 2015. "The Direct Costs and Benefits of US Electric Utility Divestitures," Cambridge Working Papers in Economics 1543, Faculty of Economics, University of Cambridge.
- P. Nillesen & M. Pollitt, 2010. "Using Regulatory Benchmarking Techniques to Set Company Performance Targets: The Case of Us Electricity," Competition and Regulation in Network Industries, Intersentia, vol. 11(1), pages 50-85, March.
- Nillesen, P. & Pollitt, M.G., 2008. "Using regulatory benchmarking techniques to set company performance targets: the case of US electricity," Cambridge Working Papers in Economics 0834, Faculty of Economics, University of Cambridge.
- Abbott, Malcolm & Cohen, Bruce, 2009. "Productivity and efficiency in the water industry," Utilities Policy, Elsevier, vol. 17(3-4), pages 233-244, September.
- George J. Stigler, 1951. "The Division of Labor is Limited by the Extent of the Market," Journal of Political Economy, University of Chicago Press, vol. 59, pages 185-185.
- Hay, Donald A & Liu, Guy S, 1997. "The Efficiency of Firms: What Difference Does Competition Make?," Economic Journal, Royal Economic Society, vol. 107(442), pages 597-617, May.
- Pollitt, Michael, 2008. "The arguments for and against ownership unbundling of energy transmission networks," Energy Policy, Elsevier, vol. 36(2), pages 704-713, February.
- Pollitt, M., 2007. "The arguments for and against ownership unbundling of energy transmission networks," Cambridge Working Papers in Economics 0737, Faculty of Economics, University of Cambridge.
- John C. Panzar & Robert D. Willig, 1977. "Economies of Scale in Multi-Output Production," The Quarterly Journal of Economics, Oxford University Press, vol. 91(3), pages 481-493.
- Abbott, Malcolm & Wang, Wei Chun & Cohen, Bruce, 2011. "The long-term reform of the water and wastewater industry: The case of Melbourne in Australia," Utilities Policy, Elsevier, vol. 19(2), pages 115-122, June. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:cam:camdae:1152. 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: (Jake Dyer)
If references are entirely missing, you can add them using this form.