The talk will make more sense if you follow along with the slides.
For more of the conference this was from, see here.
For more on the ideas in this talk, see
Woodruff, David M. 2013. Monetary surrogates and money’s dual nature. In Financial Crises and the Nature of Capitalist Money: Mutual Developments From the Work of Geoffrey Ingham, Jocelyn Pixley and G. C. Harcourt, 101-123. Houndmills: Palgrave Macmillan