For the claim that neoliberalism has been made to signify so many different things that it is largely useless, see Taylor C. Boas and Jordan Gans-Morse, “Neoliberalism: From New Liberal Philosophy to Anti-Liberal Slogan,” Studies in Comparative International Development 44.2 (2009), pp. 137–61.

Wendy Brown, Undoing the Demos, loc. 444