Critically assessing growth-based models of innovation policy, this enlightening study sparks new debate on the role and nature of responsible innovation. Drawing on insights from economics, politics, and science and technology studies, it proposes the concept of 'responsible stagnation' as an expansion of present discussions about growth, degrowth, responsibility and innovation within planetary limitations. This important intervention explores real-world relationships between the political economy, innovation policy and concepts of responsibility, and will be an invaluable resource for individuals and civil society organizations who seek to promote responsible innovation.