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A Critique of Wolak's Evaluation of the NZ Electricity Market: Introduction and Overview


Lewis T. Evans


Victoria University of Wellington - New Zealand Institute for Study of Competition and Regulation Inc. (ISCR)

Seamus Hogan


University of Canterbury

Peter Jackson


affiliation not provided to SSRN

November 22, 2011


Abstract:     
This paper is the first in a symposium of papers that examine the 2009 report by Frank Wolak into the New Zealand electricity market. The Wolak report concluded that there had been a cumulative total of $4.3b (NZD) of overcharging in the New Zealand wholesale market over a period of seven years. In this paper, we introduce the Wolak findings in the context of the salient features of the New Zealand market, and explain that this headline figure is highly sensitive to some (quite unrealistic) assumptions about the structure of this market. The papers that follow this introduction examine Wolak's methodology and its empirical application.

Number of Pages in PDF File: 20

Keywords: Wolak Report, electricity markets, market power

JEL Classification: L41, L13

working papers series


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Date posted: December 4, 2011 ; Last revised: December 20, 2011

Suggested Citation

Evans, Lewis T., Hogan, Seamus and Jackson, Peter, A Critique of Wolak's Evaluation of the NZ Electricity Market: Introduction and Overview (November 22, 2011). Available at SSRN: http://ssrn.com/abstract=1968026 or http://dx.doi.org/10.2139/ssrn.1968026

Contact Information

Lewis T. Evans (Contact Author)
Victoria University of Wellington - New Zealand Institute for Study of Competition and Regulation Inc. (ISCR) ( email )
Wellington 6001
New Zealand
64 4 4635562 (Phone)
64 4 4635566 (Fax)
Seamus Hogan
University of Canterbury ( email )
Ilam Road
Christchurch 1
New Zealand
Peter Jackson
affiliation not provided to SSRN ( email )
Feedback to SSRN (Beta)


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