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Measuring spatial focusing in a migration system
1Department of Geography and Regional Development, University of Arizona, Tucson 85721, USA. Plane@U.Arizona.Edu
Demography
|May 1, 1997
Summary
This study introduces Gini indexes to analyze migration patterns, offering new insights into spatial focusing and regional population redistribution roles. The Gini index provides unique perspectives beyond traditional migration research methods.
Area of Science:
- Demography
- Spatial Analysis
- Sociology
Background:
- Migration research often uses equality indexes from other fields.
- Existing measures may not fully capture spatial focusing in migration systems.
- The Gini coefficient, common in economics, is underutilized in migration studies.
Purpose of the Study:
- To introduce and adapt Gini indexes for analyzing spatial focusing in migration.
- To demonstrate the application of Gini indexes to U.S. interstate migration data.
- To highlight the unique insights Gini indexes offer compared to traditional migration metrics.
Main Methods:
- Adaptation of Gini indexes for migration system analysis.
- Application of Gini indexes to gross in- and out-migration fields.
- Utilizing recent U.S. interstate movement data for empirical illustration.
Main Results:
- Gini indexes effectively gauge spatial focusing in migration systems.
- The Gini index reveals population redistributive roles of specific regions.
- Demonstrated utility of Gini indexes for nuanced migration analysis.
Conclusions:
- Gini indexes offer valuable, distinct insights into migration patterns.
- The Gini coefficient is a powerful, underused tool for migration research.
- This approach enhances understanding of interregional migration dynamics.
