We did look when we did the study on Katrina. And a few studies before that looked at the wholesale aspect of the business, not just at the retail but at the entire industry. Monsieur Vincent is right. The RTPC looked at the wholesale market, among other things, in an inquiry that lasted from 1973 to 1986, until the publication of the three books he's referring to.
On December 9th, 2010. See this statement in context.