Firms display persistent differences as regards both internal and external characteristics, and these differences correspond to asymmetries in the performance of firms with regard to productivity level and growth as well as innovativeness. This paper focuses on one internal characteristic and...

Core Cities is an association of eleven cities in the UK: Belfast, Birmingham, Bristol, Cardiff, Glasgow, Leeds, Liverpool, Manchester, Newcastle, Nottingham, and Sheffield. Altogether, Core Cities and their surrounding regions account for around one quarter of the UK population and economy....