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Day-Ahead Premiums on the Midwest ISO


  • Bowden, Nicholas
  • Hu, Su
  • Payne, James


An examination of day-ahead premiums for the Midwest ISO from September 2005 to December 2007 reveals that premiums are positive and statistically significant across all five hubs, indicating inefficiency in the Midwest wholesale electricity market. Further, day-ahead premiums exhibit monthly seasonal variation with some indication of the day-ahead premiums declining over time in three of the five hubs.

Suggested Citation

  • Bowden, Nicholas & Hu, Su & Payne, James, 2009. "Day-Ahead Premiums on the Midwest ISO," The Electricity Journal, Elsevier, vol. 22(2), pages 64-73, March.
  • Handle: RePEc:eee:jelect:v:22:y:2009:i:2:p:64-73

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    Cited by:

    1. Koichiro Ito & Mar Reguant, 2016. "Sequential Markets, Market Power, and Arbitrage," American Economic Review, American Economic Association, vol. 106(7), pages 1921-1957, July.
    2. Ruddell, Keith & Downward, Anthony & Philpott, Andy, 2018. "Market power and forward prices," Economics Letters, Elsevier, vol. 166(C), pages 6-9.
    3. Victor M. Zavala & Kibaek Kim & Mihai Anitescu & John Birge, 2015. "A Stochastic Electricity Market Clearing Formulation with Consistent Pricing Properties," Papers 1510.08335,

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