Consolidating the Water Industry: An Analysis of the Potential Gains from Horizontal Integration in a Conditional Efficiency Framework
The German potable water supply industry is regarded as being highly fragmented, thus inhibiting high potentials for efficiency improvements through consolidation. Focusing on a hypothetical restructuring of the industry, we apply Data Envelopment Analysis (DEA) to analyze the potential efficiency gains from mergers between water utilities at the county level. A conditional efficiency framework is used to account for the operating environment. Highest efficiency improvement potentials turn out to result from reducing individual inefficiencies. The majority of the 84 merger cases is characterized by merger gains, which are decomposed into a technical efficiency effect, a harmony effect and a scale effect. The results suggest to improve incentives for efficient operations in water supply and a consolidation of the industry structure.
|Date of creation:||2012|
|Contact details of provider:|| Postal: Mohrenstraße 58, D-10117 Berlin|
Web page: http://www.diw.de/en
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.:
- Takuya Urakami, 2005. "Identifying scale economies for different types of water supply organizations in Japan," ERSA conference papers ersa05p370, European Regional Science Association.
- Troels Kristensen & Peter Bogetoft & Kjeld Pedersen, 2010. "Potential gains from hospital mergers in Denmark," Health Care Management Science, Springer, vol. 13(4), pages 334-345, December.
- Fumitoshi Mizutani & Takuya Urakami, 2001. "articles: Identifying network density and scale economies for Japanese water supply organizations," Papers in Regional Science, Springer;Regional Science Association International, vol. 80(2), pages 211-230.
- repec:ccp:journl:v:23:y:2003:i:5:p:137-149 is not listed on IDEAS
- Cinzia Daraio & Léopold Simar, 2005.
"Introducing Environmental Variables in Nonparametric Frontier Models: a Probabilistic Approach,"
Journal of Productivity Analysis,
Springer, vol. 24(1), pages 93-121, 09.
- Cinzia Daraio & Leopold Simar, 2003. "Introducing Environmental Variables in Nonparametric Frontier Models: a Probabilistic Approach," LEM Papers Series 2003/17, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
- Antonioli, B. & Filippini, M., 2001. "The use of a variable cost function in the regulation of the Italian water industry," Utilities Policy, Elsevier, vol. 10(3-4), pages 181-187.
- Michael Zschille & Matthias Walter, 2012. "The performance of German water utilities: a (semi)-parametric analysis," Applied Economics, Taylor & Francis Journals, vol. 44(29), pages 3749-3764, October.
- Michael Zschille & Matthias Walter, 2011. "The Performance of German Water Utilities: A (Semi)-Parametric Analysis," Post-Print hal-00712372, HAL.
- Michael Zschille & Matthias Walter, 2011. "The Performance of German Water Utilities: A (Semi)-Parametric Analysis," Discussion Papers of DIW Berlin 1118, DIW Berlin, German Institute for Economic Research.
- Andres Picazo-Tadeo & Francisco Saez-Fernandez & Francisco Gonzalez-Gomez, 2009. "The role of environmental factors in water utilities' technical efficiency. Empirical evidence from Spanish companies," Applied Economics, Taylor & Francis Journals, vol. 41(5), pages 615-628.
- Christian von Hirschhausen & Astrid Cullmann & Matthias Walter & Michael Zschille, 2009. "Fallende Preise in der Wasserwirtschaft: Hessen auf dem Vormarsch," DIW Wochenbericht, DIW Berlin, German Institute for Economic Research, vol. 76(10), pages 150-155.
- David Saal & David Parker & Tom Weyman-Jones, 2007. "Determining the contribution of technical change, efficiency change and scale change to productivity growth in the privatized English and Welsh water and sewerage industry: 1985–2000," Journal of Productivity Analysis, Springer, vol. 28(1), pages 127-139, October.
- Youn Kim, H. & Clark, Robert M., 1988. "Economies of scale and scope in water supply," Regional Science and Urban Economics, Elsevier, vol. 18(4), pages 479-502, November.
- Serge Garcia & Alban Thomas, 2001. "The Structure of Municipal Water Supply Costs: Application to a Panel of French Local Communities," Journal of Productivity Analysis, Springer, vol. 16(1), pages 5-29, July.
- Walter, Matthias & Cullmann, Astrid & von Hirschhausen, Christian & Wand, Robert & Zschille, Michael, 2009. "Quo vadis efficiency analysis of water distribution? A comparative literature review," Utilities Policy, Elsevier, vol. 17(3-4), pages 225-232, September.
- Hayfield, Tristen & Racine, Jeffrey S., 2008. "Nonparametric Econometrics: The np Package," Journal of Statistical Software, Foundation for Open Access Statistics, vol. 27(i05).
- Bhattacharyya, Arunava & Harris, Thomas R. & Narayanan, Rangesan & Raffiee, Kambiz, 1995. "Specification and estimation of the effect of ownership on the economic efficiency of the water utilities," Regional Science and Urban Economics, Elsevier, vol. 25(6), pages 759-784, December.
- Necmiddin Bagdadioglu & Catherine Waddams Price & Thomas Weyman-Jones, 2007. "Measuring Potential Gains from Mergers among Electricity Distribution Companies in Turkey using a Non-Parametric Model," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 83-110.
- Cinzia Daraio & Léopold Simar, 2007. "Conditional nonparametric frontier models for convex and nonconvex technologies: a unifying approach," Journal of Productivity Analysis, Springer, vol. 28(1), pages 13-32, October.
- Cinzia Daraio & Leopold Simar, 2005. "Conditional Nonparametric Frontier Models for Convex and Non Convex Technologies: a Unifying Approach," LEM Papers Series 2005/12, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
- Tupper, Henrique Cesar & Resende, Marcelo, 2004. "Efficiency and regulatory issues in the Brazilian water and sewage sector: an empirical study," Utilities Policy, Elsevier, vol. 12(1), pages 29-40, March.
- Maria Corton, 2011. "Sector fragmentation and aggregation of service provision in the water industry," Journal of Productivity Analysis, Springer, vol. 35(2), pages 159-169, April.
- Léopold Simar & Paul W. Wilson, 1998. "Sensitivity Analysis of Efficiency Scores: How to Bootstrap in Nonparametric Frontier Models," Management Science, INFORMS, vol. 44(1), pages 49-61, January.
- Simar, L. & Wilson, P.W., "undated". "Sensitivity analysis of efficiency scores: how to bootstrap in nonparametric frontier models," CORE Discussion Papers RP 1304, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- SIMAR, Léopold & WILSON, Paul, 1995. "Sensitivity Analysis to Efficiency Scores : How to Bootstrap in Nonparametric Frontier Models," CORE Discussion Papers 1995043, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Kristof Witte & Rui Marques, 2011. "Big and beautiful? On non-parametrically measuring scale economies in non-convex technologies," Journal of Productivity Analysis, Springer, vol. 35(3), pages 213-226, June.
- Kristof De Witte & Rui C. Marcques, 2008. "Big and beautiful? On non-parametrically measuring scale economies in non-convex technologies," Working Papers Department of Economics ces0822, KU Leuven, Faculty of Economics and Business, Department of Economics.
- Bottasso, Anna & Conti, Maurizio, 2009. "Scale economies, technology and technical change in the water industry: Evidence from the English water only sector," Regional Science and Urban Economics, Elsevier, vol. 39(2), pages 138-147, March.
- Massimo Filippini & Nevenka Hrovatin & Jelena Zorić, 2008. "Cost efficiency of Slovenian water distribution utilities: an application of stochastic frontier methods," Journal of Productivity Analysis, Springer, vol. 29(2), pages 169-182, April.
- Saal David S. & Arocena Pablo & Maziotis Alexandros & Triebs Thomas, 2013. "Scale and Scope Economies and the Efficient Vertical and Horizontal Configuration of the Water Industry: A Survey of the Literature," Review of Network Economics, De Gruyter, vol. 12(1), pages 93-129, March.
- Rita Martins & Fernando Coelho & Adelino Fortunato, 2012. "Water losses and hydrographical regions influence on the cost structure of the Portuguese water industry," Journal of Productivity Analysis, Springer, vol. 38(1), pages 81-94, August.
- Rita Martins & Fernando Coelho & Adelino Fortunato, 2008. "Water Losses and Hydrographical Regions Influence on the Cost Structure of the Portuguese Water Industry," GEMF Working Papers 2008-06, GEMF, Faculty of Economics, University of Coimbra.
- 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.
- Peter Bogetoft & Dexiang Wang, 2005. "Estimating the Potential Gains from Mergers," Journal of Productivity Analysis, Springer, vol. 23(2), pages 145-171, 05.
- Bogetoft, Peter & Wang, Dexiang, 2003. "Estimating the Potential Gains from Mergers," Unit of Economics Working papers 24213, Royal Veterinary and Agricultural University, Food and Resource Economic Institute.
- Viton, Philip A., 1992. "Consolidations of scale and scope in urban transit," Regional Science and Urban Economics, Elsevier, vol. 22(1), pages 25-49, March.
- 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.
- Celine Nauges & Caroline van den Berg, 2010. "Heterogeneity in the Cost Structure of Water and Sanitation Services: A Cross-country Comparison of Conditions for Scale Economies," Oxford Development Studies, Taylor & Francis Journals, vol. 38(2), pages 199-217.
- Thanassoulis, Emmanuel, 2000. "The use of data envelopment analysis in the regulation of UK water utilities: Water distribution," European Journal of Operational Research, Elsevier, vol. 126(2), pages 436-453, October.
- Marques, Rui Cunha & De Witte, Kristof, 2011. "Is big better? On scale and scope economies in the Portuguese water sector," Economic Modelling, Elsevier, vol. 28(3), pages 1009-1016, May.
- Paola Fabbri & Giovanni Fraquelli, 2000. "Costs and Structure of Technology in the Italian Water Industry," Empirica, Springer;Austrian Institute for Economic Research;Austrian Economic Association, vol. 27(1), pages 65-82, March.
- Takuya Urakami & David Parker, 2011. "The Effects of Consolidation amongst Japanese Water Utilities," Urban Studies, Urban Studies Journal Limited, vol. 48(13), pages 2805-2825, October. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:diw:diwwpp:dp1187. 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: (Bibliothek)
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.