Guimarães, Paulo; Figueiredo, Octávio; Woodward, Douglas - Faculdade de Economia, Universidade do Porto - 2009
A common problem with spatial economic concentration measures (e.g. Gini, Herfindhal, entropy and Ellison-Glaeser indices) is accounting for the position of regions in space. While they purport to measure spatial clustering, these statistics are confined to calculations within individual areal...