A simple location index plus some maps and no apologies: back to basics on the development of links between economic integration and spatial concentration of industries

The analysis of the location patterns of economic activities in both Europe and the US has been addressed in an extensive literature dependent on increasingly more sophisticated techniques that arguably reframe debate away from the policy questions in focus and towards debate on the complex empirical techniques that seem to be in vogue at any given time. In part this has been a response to some clear shortcomings in the use of simple locational Gini coefficients. It is argued herein that simple index approaches can still retain value if augmented with intuitive reading of some relevant maps. An example of the utility of this approach is provided in relation to the location patterns of four exemplar manufacturing industries in the EU and USA.