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Consistency in performance rankings: the Peru water sector

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  • Sanford Berg
  • Chen Lin

Abstract

Regulators can utilize a number of alternative methodologies for comparing firm efficiency, but these approaches need to be robust to be accepted by stakeholders. This study evaluates the consistency of water-utility performance rankings for Peruvian water utilities. The results indicate that data envelopment analysis (DEA) and stochastic frontier analysis (SFA) yield similar rankings in this case. In addition, the techniques have comparable success for identifying the best and worst performing utilities. However, these rankings based on sophisticated statistical techniques are not highly correlated with those developed by the Peruvian water regulator (SUNASS). This result does not invalidate the performance rankings obtained by the regulator, since those rankings are based on more dimensions of utility performance. However, they illustrate the importance of developing sound techniques for identifying weak utilities. Improvements in sector performance require that benchmarking be given greater attention than in the past.

Suggested Citation

  • Sanford Berg & Chen Lin, 2008. "Consistency in performance rankings: the Peru water sector," Applied Economics, Taylor & Francis Journals, vol. 40(6), pages 793-805.
  • Handle: RePEc:taf:applec:v:40:y:2008:i:6:p:793-805
    DOI: 10.1080/00036840600749409
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    References listed on IDEAS

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    1. Tim Coelli & Antonio Estache & Sergio Perelman & Lourdes Trujillo, 2003. "A Primer on Efficiency Measurement for Utilities and Transport Regulators," World Bank Publications, The World Bank, number 15149, June.
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    Cited by:

    1. Resende, Marcelo, 2008. "Efficiency measurement and regulation in US telecommunications: A robustness analysis," International Journal of Production Economics, Elsevier, vol. 114(1), pages 205-218, July.
    2. repec:spr:waterr:v:31:y:2017:i:8:d:10.1007_s11269-016-1395-6 is not listed on IDEAS
    3. María Molinos-Senante & Manuel Mocholi-Arce & Ramón Sala-Garrido, 2016. "Efficiency Assessment of Water and Sewerage Companies: a Disaggregated Approach Accounting for Service Quality," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(12), pages 4311-4328, September.
    4. Chen Lin & Sanford Berg, 2008. "Incorporating Service Quality into Yardstick Regulation: An Application to the Peru Water Sector," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 32(1), pages 53-75, February.
    5. Madrigal, Róger & Alpízar, Francisco & Schlüter, Achim, 2010. "Determinants of Performance of Drinking-Water Community Organizations: A Comparative Analysis of Case Studies in Rural Costa Rica," Discussion Papers dp-10-03-efd, Resources For the Future.
    6. Ferro, Gustavo & Lentini, Emilio J. & Mercadier, Augusto C. & Romero, Carlos A., 2013. "Eficiencia en la prestación de agua y saneamiento y su vinculación con regiones, propiedad e independencia de los prestadores en Brasil
      [Efficiency in water and sanitation providers and its links w
      ," MPRA Paper 48247, University Library of Munich, Germany.
    7. repec:eee:juipol:v:49:y:2017:i:c:p:127-136 is not listed on IDEAS
    8. Miguel A. García-Rubio & Francisco González-Gómez & Jorge Guardiola, 2009. "Performance and ownership in the governance of urban water," FEG Working Paper Series 09/03, Faculty of Economics and Business (University of Granada).
    9. Berg, Sanford V & Marques, Rui Cunha, 2010. "Quantitative studies of water and sanitation utilities: a literature survey," MPRA Paper 32891, University Library of Munich, Germany.
    10. Alexandr Akimov & Paul Simshauser, 2018. "Performance measurement in Australian water utilities: Current state and future directions," Discussion Papers in Finance finance:201802, Griffith University, Department of Accounting, Finance and Economics.

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