Greenberg, Marcia E. (2007). "Changing Ideas, Changing Tactics: From Law-Based Advocacy to Human Development Oriented Interventions" Paper presented at the 4th annual conference of the HDCA, 18-20 September 2007, New York, USA.

By highlighting the preceding Keynesian thought, the organizers of this HDCA conference have invited us to consider not only the power of ideas, but also the possibility that they may in some cases be wrong – and thereby cause unintended consequences.