This study identifies clusters of US and Canadian metropolitan areas with similar knowledge traits. These groups—ranging from ‘Making regions’, characterised by knowledge about manufacturing, to ‘Thinking regions’, noted for knowledge about the arts, humanities, IT and commerce—can...

This paper examines the agglomeration of people working in jobs with similar knowledge requirements, ranging from groups of artists and scientists to service providers and low-skilled labourers. Empirical results from the US suggest that agglomeration enhances earnings in innovation- and...