Center for Economic Development
What is an employment center? McMillen (2003) defines an employment center as a “concentration of firms large enough to have significant effects on the overall spatial distribution of population, employment, and land prices.” Bogart (1998) sees employment centers as a collection of small open economies in a metropolitan area that specialize and trade with each other. Technically speaking, an employment center is a geographic area that exceeds a threshold employment density (employees per square mile) and a threshold employment level.
Sadowski, Robert, "Employment Centers in the Akron, Cleveland and Youngstown Metropolitan Areas" (2005). Urban Publications. 0 1 2 3 255.