Preface -- 1. Introduction and Goals -- 2. Alternative Formulas for Selected Indices -- 3. Overview of the “Difference of Means” Framework -- 4. Index-Specific Implementations of Difference of Means Formulations -- 5. Index Differences in Registering Area Group Proportions -- 6. Empirical Relationships among Indices -- 7.Distinctions between Displacement and Separation -- 8. Further Comment…