'Philip Haynes has produced an important book for anyone who wishes to understand why the global financial crisis developed in the way it did. He explores the reasons why governments throughout the world reacted with certain policies. Haynes takes difficult mathematically-based concepts, such as complexity theory and applies them to deliver an understanding of the policy context for the way the financial crisis developed across a range of countries. He shows the strengths and limitations of markets and policy makers in both the governing institutions and private sectors. It is a clearly written and methodologically and theoretically innovative book; it should be required reading for practitioners and academics alike.'Andrew Massey, University of Exeter, UK'The global financial crisis continues to cast a long shadow. There are scholarly works on the nature of the crisis of 2008. Philip Haynes takes this further. His articulate and lucid analysis of the original crisis and the manner in which the corporate debt crisis of banks became an issue of sovereign debt and the consequent and current policy options confronting governments makes this book essential reading for all interested in this, the most topical subject of the 21st century.'Irvine Lapsley, University of Edinburgh, UK'Those of us who wanted the social sciences to take a turn to complexity have always understood that the test of that turn would be the use of complexity ideas in addressing major social and political issues. No issue could be more important than the current economic crisis. In this book Phil Haynes deploys the full repertoire of complexity related methods in a way which greatly illuminates our understanding of what has happened and what might happen going forward. This is an exemplary book in terms of method and a fundamentally important one in terms of its substantive focus.'David Byrne, Durham University, UK