Raghuram Rajan (Chairman, RBI, India) spoke about this and more recently in a very interesting speech - http://www.rbi.org.in/scripts/BS_SpeechesView.aspx?Id=90

Raghuram Rajan (Chairman, RBI, India) spoke about this and more recently in a very interesting speech - http://www.rbi.org.in/scripts/BS_SpeechesView.aspx?Id=908&_ga=1.36630818.383224264.1392830436 http://www.rbi.org.in/scripts/BS_SpeechesView.aspx?Id=908&_g... (Check the section, "Money liberates and Empowers" if not the whole article.)