Natural advantages determine where agglomerations emerge. Also, efficiency and economies of scale determine how many agglomerations subsist and how they interact, forming complex urban hierarquies. Moreover, physical characteristics influence the way humans divide land into irregular parcels we...

Since early 90s, the issue of income convergence across regions has been widely discussed in a number of papers, both looking at long-term tendencies and trying to establish the role played by several socio-economic determinants. Much less attention has instead been devoted to the analysis of...