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Assessing The Integration Of Electricity Markets Using Principal Component Analysis: Network And Market Structure Effects

  • LEWIS EVANS
  • GRAEME GUTHRIE
  • STEEN VIDEBECK

"Market power in electricity wholesale spot markets is more likely if there is market segmentation. We show that principal component analysis is a natural tool for the qualitative and quantitative assessment of the presence of local markets. We study whether the New Zealand market has been a national market or a set of local markets since its inception in 1996 and find that increased competition induced some segmentation that was eliminated by transmission enhancement and the introduction of generation downstream from the constrained circuits. Transmission investment policy that ensures one market will contribute to the efficiency of electricity, water, and related other markets." ("JEL" D4, L1, L4) Copyright 2007 Western Economic Association International.

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Article provided by Western Economic Association International in its journal Contemporary Economic Policy.

Volume (Year): 26 (2008)
Issue (Month): 1 (01)
Pages: 145-161

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Handle: RePEc:bla:coecpo:v:26:y:2008:i:1:p:145-161
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  1. Joskow, P. & Edward Kahn, 2002. "A Quantitative Analysis of Pricing Behavior In California’s Wholesale Electricity Market During Summer 2000," Cambridge Working Papers in Economics 0211, Faculty of Economics, University of Cambridge.
  2. Catherine D. Wolfram, 1998. "Strategic Bidding in a Multiunit Auction: An Empirical Analysis of Bids to Supply Electricity in England and Wales," RAND Journal of Economics, The RAND Corporation, vol. 29(4), pages 703-725, Winter.
  3. Kleit, Andrew N., 2001. "Defining electricity markets: an arbitrage cost approach," Resource and Energy Economics, Elsevier, vol. 23(3), pages 259-270, July.
  4. Catherine D. Wolfram, 1999. "Measuring Duopoly Power in the British Electricity Spot Market," American Economic Review, American Economic Association, vol. 89(4), pages 805-826, September.
  5. Bushnell, James, 2005. "Looking for Trouble: Competition Policy in the U.S. Electricity Industry," Staff General Research Papers 13140, Iowa State University, Department of Economics.
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