[Excerpt] In The System of Professions, Abbott directly confronts these important and long-neglected issues in an original and highly thought-provoking approach to the analysis of professions. Focusing on the dynamics through which occupations define their jurisdiction, or the right to control the provision of particular services and activities, this approach draws attention to one of the most critical determinants of jurisdiction, interprofessional competition. Based on an astoundingly wide, cross-cultural knowledge of the histories of a variety of occupations, Abbott provides a rich and complex analysis of the nature of relationships among professional occupations and the forces that shape these relationships over time.