This book unveils the forces behind the dynamic knowledge economy that drove America's 21st century economic success.

Challenging the notion of the US as a singular market-driven economy, the book introduces the concept of the 'Polycentric Innovation State' to explain the critical role federal and state governments play in shaping innovation-led growth. Through detailed comparative analysis of four states, the book demonstrates how regional authorities pursue distinct yet overlapping strategies to foster high-value industries. Essential reading for scholars of comparative political economy and American governance, this book offers fresh insights into the evolving landscape of American capitalism and state-market relations.