Linda F. Dennard, Ph.D University College Cork Department of Government Director: ETHOS Project on Global Governance & Complexity l.dennard@ucc.ie Policy Analysis: Implications of the new sciences of complexity and governance Short Abstract: Over several centuries the science attributed to Descartes, Newton, and Bacon became the mindset from which both the decision-making practices of modern politics and administration were framed and citizen behaviour was judged. With the emergence of the new sciences of complexity, another paradigm of metaphors, concepts, and methodologies have begun to influence governance practice. Whether the new sciences will produce radically new forms of governance practice or whether they will be used merely to reduce the risk involved in governing complex societies within existing posivitist frameworks remains to be seen. Some of the issues involved in creating a productive dialogue between the sciences and social sciences are explored, with a particular emphasis on the rapidly changing field of policy analysis.