This book investigates the limitations of traditional equilibrium-based market models by proposing a complex systems framework to better quantify actual market efficiency. The authors, J. Doyne Farmer and John Geanakoplos, leverage their expertise in quantitative modeling and economics to synthesize research from diverse fields including physics, biology, and behavioral psychology. By challenging the assumption of perfect efficiency, the text argues for a multi-disciplinary approach to understanding the self-organized, often irrational, dynamics of modern financial systems.

Experts recognize this volume as a significant contribution to the Santa Fe Institute's ongoing research into complex adaptive systems. Readers frequently note the technical density of the prose, which serves as a specialized resource for economists and physicists interested in non-equilibrium market dynamics.