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The Review of Economics and Statistics Vol. 107 No. 6 2025

Regional Borders, Commuting, and Transport Network Integration

Gabriel Loumeau

VU Amsterdam

Abstract

This paper exploits spatial quasiexperimental variation around French departmental borders to provide novel evidence that regional borders disturb surrounding economic activity; namely, commuting flows, catchment areas, and residential density. The lack of integration of local transport networks at regional borders—leading to a 4.5 km travel distance penalty when crossing borders—explains the observed border effects. Using a spatial quantifiable equilibrium framework and accounting for construction costs, a policy simulation exercise shows that integrating local transport networks leads to a 6.36% average growth in real per capita residential income.

DOI
10.1162/rest_a_01350
Volume
107
Issue
6
Pages
1573-1587
Language
en
Sources
openalex crossref

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