Geography, Productivity and Trade: Does Selection Explain Why Some Locations Are More Productive than Others?
65 Pages Posted: 3 May 2013
Date Written: April 24, 2013
Abstract
Two main hypotheses are usually put forward to explain the productivity advantages of larger cities: agglomeration economies and firm selection. Combes et al. (2012) propose an empirical approach to disentangle these two effects and fail to find any impact of selection on local productivity differences. We theoretically show that selection effects do emerge when asymmetric trade and entry costs and different spatial scale at which agglomeration and selection may work are properly taken into account. The empirical findings confirm that agglomeration effects play a major role. However, they also show a substantial increase in the importance of the selection effect when asymmetric trade costs and a different spatial scale are taken into account.
Keywords: agglomeration economies, firm selection, market size, entry costs, openness to trade
JEL Classification: C52, R12, D24
Suggested Citation: Suggested Citation
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