Why Are The Corporate Rich So Powerful? (Domhoff, 1994) 

Bill Domhoff claims that the problem facing the economy in 1994 was inadequate demand. (He still thinks that's the problem, but it was temporarily solved until 2008 in unsustainable ways. Other than his failure to anticipate the gimmicks that created demand, he thinks this talk is as spot-on for 2015 as it was for 1994.)
Presented as the 28th Annual Faculty Research Lecture of the Santa Cruz Division of the Academic Senate of the University of California, April 27, 1994.
More info: whorulesamerica.net/