1. Alternatively, it could comprise the fifteen-mile radius around the university including all of Cambridgeshire County but excluding Huntingdon and Peterborough as used in the CBR study and detailed in Keeble et al (1999). Lastly, media reports using CCC data often define Cambridge to mean Cambridgeshire county. Some studies also use the employment service area for Cambridge, which is the labour market for Cambridge employers as defined by commuter patterns;general this latter definition encompasses all of Cambridgeshire County and regions further south and east