Answers are grounded in this paper and cite their sources.
Bertinelli L. and Decrop J. (2005) Geographical agglomeration: Ellison and Glaeser's index applied to the case of Belgian manufacturing industry, Regional Studies 39 , 567–583. The aim of this study is to provide a comprehensive discussion of the use of the Ellison and Glaeser index and subsequently to carry out a descriptive analysis of the geographical concentration of the manufacturing sector in Belgium. To assess the degree of concentration, individual plant data on wage and salary earners are used, with a relatively fine geographical breakdown (districts and townships). It is shown that more than 30% of the industries are excessively agglomerated.
No takes yet. Share an insight, caveat, or question.
Bertinelli et al. (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: