to use Bell et al. (2002) updated
formulas instead of Plane and Mulligan (1997)
Value
List of all Gini indices.
References
David A. Plane and Gordon F. Mulligan
(1997) Measuring Spatial Focusing in a Migration System.
Demography34, 251--262
M. Bell, M.
Blake, P. Boyle, O. Duke-Williams, P. Rees, J. Stillwell
and G. Hugo (2002) Cross-National Comparison of Internal
Migration. Issues and Measures. Journal of the
Royal Statistical Society. Series A (Statistics in
Society)165, 435--464