This paper attempts to model directly the "folk theorem" of spatial economics, according to which increasing returns to scale are essential for understanding the geographical distributions of activity. The model uses the simple structure of most New Economic Geography papers, with two identical...

In order to evaluate the allocational effectiveness of regional policy when harmonizing regional economic conditions firms' preferences play a pivot role. If harmonization hinders risk diversification of the firm, then instead of regional diversification of capital agglomeration of capital...