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...

Regional disparities in unemployment rates are large and persistent, particularly in some economies such as Spain. Previous contributions to the literature have provided evidence on their magnitude and evolution, as well as on the role of some economic, demographic and environmental factors in...

We study innovation and the resulting Schumpeterian economic growth that this innovation gives rise to in a model with N heterogeneous regions. For each region i where i=1,...,N, our analysis leads to five findings. First, we define the balanced growth path (BGP) allocations and the equilibrium...

This paper develops a search and matching model with hierarchical firms, human capital accumulation, internal promotions and on-the-job search. At the time of their market entry firms maximize present value of profits with respect to their promotion rule. Workers who are eligible for promotion...

I study the effect of refugees' protection status on labor market outcomes focusing on a recent cohort of Syrian and Iraqi refugees entering Germany between 2013 and 2016. My empirical analysis exploits a sudden and unpredictable change in the assessment of the Federal Agency responsible for...