In today's project-driven economy, organizations navigate increasingly complex contractual arrangements that go beyond traditional project management. This book presents a comprehensive metatheory of project governance, integrating insights from organizational science, strategic management, and economics. It examines a wide range of project setups, from internal initiatives to interfirm collaborations, and provides a robust framework for governing contractual relationships from the project owner's perspective. Designed for scholars, executives, and decision-makers, it offers practical tools to handle risk, responsibility, and control across diverse project environments. Essential reading for anyone shaping the future of projects, innovation, and organizational transformation in a rapidly evolving global landscape.