1. Session Abstract: Conceptualizing Institutional Stabilization • Paola Castano, University of Exeter; Andreas Glaeser, University of Chicago.

2. The Social Magic of Nature: How Institutions are Stabilized in Reference to Natural Processes • Andreas Glaeser, University of Chicago.

3. Why Did Jay Ashcroft Go to St Louis? • Josh Pacewicz, Brown University.

4. Organizational Invention in Renaissance Florence • John Padgett, University of Chicago.

5. The Institutional Character of the International Space Station: Modularity and Iridescence • Paola Castano, University of Exeter.