Bowden, Nicholas; Hu, Su; Payne, James - In: The Electricity Journal 22 (2009) 2, pp. 64-73
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...