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Productivity change and innovation in Norwegian electricity distribution companies

Author

Listed:
  • V L Miguéis

    (Faculdade de Engenharia, Universidade do Porto, Portugal)

  • A S Camanho

    (Faculdade de Engenharia, Universidade do Porto, Portugal)

  • E Bjørndal

    (Norwegian School of Economics and Business Administration, Bergen, Norway)

  • M Bjørndal

    (Norwegian School of Economics and Business Administration, Bergen, Norway)

Abstract

Regulators of electricity distribution networks have typically applied Data Envelopment Analysis (DEA) to cross-section data for benchmarking purposes. However, the use of panel data to analyse the impact of regulatory policies on productivity change over time is less frequent. The main purpose of this paper is to construct a Malmquist productivity index to examine the recent productivity change experienced by Norwegian distribution companies between 2004 and 2007. The Malmquist index is decomposed in order to explore the sources of productivity change, and to identify the innovator companies that pushed the frontier forward each year. The input and output variables considered are those used by the Norwegian regulator. In order to reflect appropriately the exogenous conditions where the companies operate, the efficiency model used in this paper incorporates geography variables as outputs of the DEA model. Unlike the model used by the regulator, we included virtual weight restrictions in the DEA formulation to correct the biases in the DEA results that may be associated to a judicious choice of weights by some of the companies.

Suggested Citation

  • V L Miguéis & A S Camanho & E Bjørndal & M Bjørndal, 2012. "Productivity change and innovation in Norwegian electricity distribution companies," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 63(7), pages 982-990, July.
    • Handle: RePEc:pal:jorsoc:v:63:y:2012:i:7:p:982-990
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    Citations

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    Cited by:

    1. Rahmatallah Poudineh and Tooraj Jamasb, 2015. "A New Perspective: Investment and Efficiency under Incentive Regulation," The Energy Journal, International Association for Energy Economics, vol. 0(Number 4).
    2. Andor, Mark A. & Parmeter, Christopher & Sommer, Stephan, 2019. "Combining uncertainty with uncertainty to get certainty? Efficiency analysis for regulation purposes," European Journal of Operational Research, Elsevier, vol. 274(1), pages 240-252.
    3. Sueyoshi, Toshiyuki & Yuan, Yan & Goto, Mika, 2017. "A literature study for DEA applied to energy and environment," Energy Economics, Elsevier, vol. 62(C), pages 104-124.
    4. Cheng, Xiaomei & Bjørndal, Endre & Bjørndal, Mette, 2015. "Malmquist Productivity Analysis based on StoNED," Discussion Papers 2015/25, Norwegian School of Economics, Department of Business and Management Science.
    5. Amado, Carla A.F. & Santos, Sérgio P. & Sequeira, João F.C., 2013. "Using Data Envelopment Analysis to support the design of process improvement interventions in electricity distribution," European Journal of Operational Research, Elsevier, vol. 228(1), pages 226-235.
    6. Orea, Luis & Álvarez, Inmaculada C. & Jamasb, Tooraj, 2016. "A spatial approach to control for unobserved environmental conditions when measuring firms’ technology: an application to Norwegian electricity distribution networks," Efficiency Series Papers 2016/06, University of Oviedo, Department of Economics, Oviedo Efficiency Group (OEG).
    7. repec:spr:annopr:v:261:y:2018:i:1:d:10.1007_s10479-017-2628-7 is not listed on IDEAS
    8. Cambini, Carlo & Croce, Annalisa & Fumagalli, Elena, 2014. "Output-based incentive regulation in electricity distribution: Evidence from Italy," Energy Economics, Elsevier, vol. 45(C), pages 205-216.
    9. Luis Orea & Inmaculada C. Álvarez & Tooraj Jamasb, 2016. "Using a spatial econometric approach to mitigate omitted variables in stochastic frontier models: An application to Norwegian electricity distribution networks," Working Papers EPRG 1630, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    10. Cheng, Xiaomei & Bjørndal, Endre & Bjørndal, Mette, 2014. "Cost Efficiency Analysis based on The DEA and StoNED Models: Case of Norwegian Electricity Distribution Companies," Discussion Papers 2014/28, Norwegian School of Economics, Department of Business and Management Science.
    11. Cheng, Xiaomei & Bjørndal, Endre & Bjørndal, Mette, 2015. "Optimal Scale in Different Environments – The Case of Norwegian Electricity Distribution Companies," Discussion Papers 2015/22, Norwegian School of Economics, Department of Business and Management Science.
    12. repec:aen:journl:ej38-4-orea is not listed on IDEAS
    13. repec:eee:ejores:v:263:y:2017:i:3:p:1078-1094 is not listed on IDEAS
    14. Cheng, Xiaomei & Bjørndal, Endre & Lien, Gudbrand & Bjørndal, Mette, 2015. "Productivity Development for Norwegian Electricity Distribution Companies 2004-2013," Discussion Papers 2015/27, Norwegian School of Economics, Department of Business and Management Science.

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