We consider whether external urban economic advantages (agglomeration economies) vary with time and space using a simple economic model and detailed micro-data on 134 locations in New Zealand for the period 1976-2018. We find subtle temporal variation, with estimates peaking in 1991 and then...

This chapter examines the link between firm productivity and the population composition of the areas in which firms operate. We combine annual firm-level microdata on production, covering a large proportion of the New Zealand economy, with area-level workforce characteristics obtained from...