Gavin Rae 
Poststructuralist Agency [PDF ebook] 
The Subject in Twentieth-Century Theory

Gavin Rae shows that the problematic status of agency caused by the poststructuralist decentring of the subject is a central concern for poststructuralist thinkers. First, Rae shows how this plays out in the thinking of Deleuze, Derrida and Foucault. He then demonstrates that it is with those poststructuralists associated with and influenced by Lacanian psychoanalysis that this issue most clearly comes to the fore. He goes on to reveal that the conceptual schema of Cornelius Castoriadis best explains how the founded subject is capable of agency.