IDEAS home Printed from https://ideas.repec.org/a/eee/juipol/v34y2015icp54-62.html
   My bibliography  Save this article

Optimal water tariffs and supply augmentation for cost-of-service regulated water utilities

Author

Listed:
  • Grafton, R. Quentin
  • Chu, Long
  • Kompas, Tom

Abstract

We describe how a common method for regulating water utilities, cost-of-service regulation, can both in theory and practice result in the premature and economically inefficient water supply augmentation. Using a dynamic model calibrated to demand and supply conditions in Sydney, Australia we show how to optimally determine the time to supply augment using a ‘golden rule’ that minimises the average volumetric price paid by consumers. Our results show that, the greater the water scarcity and the longer the operational life of the additional supply, the sooner is the optimal time to augment. Based on our findings, we recommend that price regulators of water utilities adopt an historical cost less depreciation basis for a regulated asset base and a fully flexible and dynamically efficient volumetric pricing that accounts for the marginal opportunity cost of water supplies.

Suggested Citation

  • Grafton, R. Quentin & Chu, Long & Kompas, Tom, 2015. "Optimal water tariffs and supply augmentation for cost-of-service regulated water utilities," Utilities Policy, Elsevier, vol. 34(C), pages 54-62.
    • Handle: RePEc:eee:juipol:v:34:y:2015:i:c:p:54-62
    DOI: 10.1016/j.jup.2015.02.003
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0957178715000168
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.jup.2015.02.003?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Commission, Productivity, 2011. "Australian’s Urban Water Sector," Inquiry Reports, Productivity Commission, Government of Australia, volume 2, number 55.
    2. R. Quentin Grafton & Tom Kompas, 2007. "Pricing Sydney water ," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 51(3), pages 227-241, September.
    3. Grafton, R. Quentin & Kompas, Tom & To, Hang & Ward, Michael B., 2009. "Residential Water Consumption: A Cross Country Analysis," Research Reports 94823, Australian National University, Environmental Economics Research Hub.
    4. Hugh Sibly & Richard Tooth, 2008. "Bringing competition to urban water supply ," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 52(3), pages 217-233, September.
    5. Michael H. Riordan, 1984. "On Delegating Price Authority to a Regulated Firm," RAND Journal of Economics, The RAND Corporation, vol. 15(1), pages 108-115, Spring.
    6. García-Valiñas, María de los Ángeles & González-Gómez, Francisco & Picazo-Tadeo, Andrés J., 2013. "Is the price of water for residential use related to provider ownership? Empirical evidence from Spain," Utilities Policy, Elsevier, vol. 24(C), pages 59-69.
    7. Guasch, J. Luis & Laffont, Jean-Jacques & Straub, Stéphane, 2008. "Renegotiation of concession contracts in Latin America: Evidence from the water and transport sectors," International Journal of Industrial Organization, Elsevier, vol. 26(2), pages 421-442, March.
    8. R. Quentin Grafton & Michael B. Ward, 2008. "Prices versus Rationing: Marshallian Surplus and Mandatory Water Restrictions," The Economic Record, The Economic Society of Australia, vol. 84(s1), pages 57-65, September.
    9. Terence Dwyer, 2006. "Urban Water Policy: In Need of Economics," Agenda - A Journal of Policy Analysis and Reform, Australian National University, College of Business and Economics, School of Economics, vol. 13(1), pages 3-16.
    10. Grafton, R. Quentin & Kompas, Tom & To, Hang & Ward, Michael B., 2009. "Residential Water Consumption: A Cross Country Analysis," Research Reports 94823, Australian National University, Environmental Economics Research Hub.
    11. Katherine Daniell & Jean-Daniel Rinaudo & Noel Wai Wah Chan & Céline Nauges & Quentin Grafton, 2015. "Understanding and Managing Urban Water in Transition," Post-Print hal-01290502, HAL.
    12. Whittington, Dale & Hanemann, W. Michael & Sadoff, Claudia & Jeuland, Marc, 2009. "The Challenge of Improving Water and Sanitation Services in Less Developed Countries," Foundations and Trends(R) in Microeconomics, now publishers, vol. 4(6–7), pages 469-609, September.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Bako Kinga-Erzsebet & Fulop Arpad-Zoltan, 2017. "Profitability And Efficiency Analysis In Water And Sewerage Sector In Romania," Annals - Economy Series, Constantin Brancusi University, Faculty of Economics, vol. 4, pages 96-102, August.
    2. R. Quentin Grafton, 2017. "Responding to the ‘Wicked Problem’ of Water Insecurity," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(10), pages 3023-3041, August.
    3. Garrone, Paola & Grilli, Luca & Marzano, Riccardo, 2019. "Price elasticity of water demand considering scarcity and attitudes," Utilities Policy, Elsevier, vol. 59(C), pages 1-1.
    4. Long Chu & R. Quentin Grafton, 2019. "Policy Note: "Short-term Pain for Long-term Gain: Urban Water Pricing and the Risk-adjusted User Cost"," Water Economics and Policy (WEP), World Scientific Publishing Co. Pte. Ltd., vol. 5(02), pages 1-14, April.
    5. Grafton, Rupert Quentin, 2019. "Policy review of water reform in the Murray– Darling Basin, Australia: the “do’s” and “do’nots”," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 63(1), January.
    6. Rust, Steven & Silberberg, Ben & Turner, Emma & Sharp, Basil, 2020. "Investigating the value of keeping options open for water infrastructure in the Lower Hunter, New South Wales," Utilities Policy, Elsevier, vol. 62(C).
    7. Cooper, Bethany & Crase, Lin, 2016. "Governing water service provision: Lessons from Australia," Utilities Policy, Elsevier, vol. 43(PA), pages 42-47.
    8. Molinos-Senante, María & Donoso, Guillermo, 2016. "Water scarcity and affordability in urban water pricing: A case study of Chile," Utilities Policy, Elsevier, vol. 43(PA), pages 107-116.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Aisbett, Emma & Steinhauser, Ralf, 2011. "Does anybody give a dam? The importance of public awareness for urban water conservation during drought," Research Reports 107850, Australian National University, Environmental Economics Research Hub.
    2. Djiby Racine Thiam & Ariel Dinar & Hebert Ntuli, 2021. "Promotion of residential water conservation measures in South Africa: the role of water-saving equipment," Environmental Economics and Policy Studies, Springer;Society for Environmental Economics and Policy Studies - SEEPS, vol. 23(1), pages 173-210, January.
    3. Mónica Maldonado-Devis & Vicent Almenar-Llongo, 2021. "A Panel Data Estimation of Domestic Water Demand with IRT Tariff Structure: The Case of the City of Valencia (Spain)," Sustainability, MDPI, vol. 13(3), pages 1-26, January.
    4. Milan Ščasný & Šarlota Smutná, 2021. "Estimation of price and income elasticity of residential water demand in the Czech Republic over three decades," Journal of Consumer Affairs, Wiley Blackwell, vol. 55(2), pages 580-608, June.
    5. Productivity Commission, 2008. "Towards Urban Water Reform: A Discussion Paper," Research Papers 0801, Productivity Commission, Government of Australia.
    6. Freebairn, John W., 2012. "Risk Aversion and Urban Water Decisions," 2012 Conference (56th), February 7-10, 2012, Fremantle, Australia 124206, Australian Agricultural and Resource Economics Society.
    7. María Ángeles García-Valiñas & Sara Suárez-Fernández, 2022. "Are Economic Tools Useful to Manage Residential Water Demand? A Review of Old Issues and Emerging Topics," Post-Print hal-04067487, HAL.
    8. Griffin, Ronald C. & Mjelde, James W., 2011. "Distributing water's bounty," Ecological Economics, Elsevier, vol. 72(C), pages 116-128.
    9. Hugh Sibly & Richard Tooth, 2014. "The consequences of using increasing block tariffs to price urban water," Australian Journal of Agricultural and Resource Economics, Australian Agricultural and Resource Economics Society, vol. 58(2), pages 223-243, April.
    10. Nicholas Pawsey & Lin Crase, 2013. "The Mystique of Water Pricing and Accounting," Economic Papers, The Economic Society of Australia, vol. 32(3), pages 328-339, September.
    11. Duyen Nhat Lam Tran & Tien Dinh Nguyen & Thuy Thu Pham & Roberto F. Rañola & Thinh An Nguyen, 2021. "Improving Irrigation Water Use Efficiency of Robusta Coffee ( Coffea canephora ) Production in Lam Dong Province, Vietnam," Sustainability, MDPI, vol. 13(12), pages 1-17, June.
    12. Kiran B Krishnamurthy, Chandra & Kriström, Bengt, 2013. "A cross-country analysis of residential electricity demand in 11 OECD-countries," CERE Working Papers 2013:5, CERE - the Center for Environmental and Resource Economics, revised 30 Jun 2014.
    13. Long Chu & R. Quentin Grafton, 2019. "Policy Note: "Short-term Pain for Long-term Gain: Urban Water Pricing and the Risk-adjusted User Cost"," Water Economics and Policy (WEP), World Scientific Publishing Co. Pte. Ltd., vol. 5(02), pages 1-14, April.
    14. Fuentes, E. & Arce, L. & Salom, J., 2018. "A review of domestic hot water consumption profiles for application in systems and buildings energy performance analysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 1530-1547.
    15. Nauges, Celine & Whittington, Dale, 2017. "Evaluating the Performance of Alternative Municipal Water Tariff Designs: Quantifying the Tradeoffs between Equity, Economic Efficiency, and Cost Recovery," World Development, Elsevier, vol. 91(C), pages 125-143.
    16. Fuente, David, 2019. "The design and evaluation of water tariffs: A systematic review," Utilities Policy, Elsevier, vol. 61(C).
    17. -, 2015. "La economía del cambio climático en América Latina y el Caribe: paradojas y desafíos del desarrollo sostenible," Libros y Documentos Institucionales, Naciones Unidas Comisión Económica para América Latina y el Caribe (CEPAL), number 37310 edited by Cepal, March.
    18. Neil Byron & Alan Johnston & Rick Baker & Andrew Barker, 2008. "Towards Urban Water Reform," Australian Economic Review, The University of Melbourne, Melbourne Institute of Applied Economic and Social Research, vol. 41(4), pages 401-412, December.
    19. Henrique Monteiro, 2010. "Residential Water Demand in Portugal: checking for efficiency-based justifications for increasing block tariffs," Working Papers Series 1 ercwp0110, ISCTE-IUL, Business Research Unit (BRU-IUL).
    20. Bethany Cooper & Michael Burton & Lin Crase, 2019. "Willingness to Pay to Avoid Water Restrictions in Australia Under a Changing Climate," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 72(3), pages 823-847, March.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:juipol:v:34:y:2015:i:c:p:54-62. See general information about how to correct material in RePEc.

    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 CitEc recognized a bibliographic reference but did not link an item in RePEc 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 RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: https://www.sciencedirect.com/journal/utilities-policy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.