We use a simple analytical framework to study how idiosyncratic production shocks are smoothed through risksharing across Spanish provinces. By analyzing how production in the average province is successively smoothed until it is used as consumption, we find that half of the shocks have been...

In this paper, we put forth the view that the potential for urbanisation economies increases with interaction opportunities. On the basis of that premise, three properties are key to an agglomeration index, which should: (i) increase with the concentration of population and conform to the...