’Contractual networks - loose associations of firms - are fundamental but little-understood features of the modern economic landscape. Observed across a wide range of industries and in many different settings, these networks present important questions for the theory of the firm and for the analysis of modern industrial organization. This volume brings together cutting edge research on contractual networks across a range of industries, geographic regions, and legal environments - research that demonstrates the extraordinary flexibility and complexity of these forms of industrial organization and illuminates many aspects of their structure and function. Highly recommended.’