Abstract
Affect Control Theory was developed to address some issues in role theory. However, a mathematical formulation allowed the theory to expand rapidly to a variety of substantive issues, such as labeling, attributions, emotions, and the impact of settings on social interaction. Formalization raised theoretical issues that might have been neglected otherwise, and helped in defining the boundaries of the theory. A reasonable lesson to draw from development of affect control theory is that even modest mathematical analyses can expand theoretical productivity