1. Price spikes redux;Micheals;Public Utilities Fortnightly,1999
2. The trouble with electricity markets;Borenstein;Journal of Economic Perspectives,2002
3. Borenstein S, Bushnell J, Knittel CR, Wolfram C. Trading inefficiencies in California electricity markets. POWER Working Paper PWP-86. Berkeley, CA: University of California Energy Institute, 2003.
4. Was gas to blame? Exploring the cause of California's high prices;Krapels;Public Utilities Fortnightly,2001
5. Woo CK, Olson A, Horowitz I. Market efficiency, cross hedging and price forecasts: California's natural-gas markets. Working Paper. Energy and Environmental Economics, San Francisco, CA, 2004.