Spatial spillover effects are widely studied in the literature, as an important source of externality and therefore of discrepancy between private and social optimum, creating the emergence for ad-hoc policy interventions. Within the literature, their spatially-bounded nature is highly...

The aim of this article is to present a critical view of the theoretical toolboxes developed in urban economics to explain urban city size. The article starts with the consideration that, during the 1960s and 1970s, the question of optimal city-size tended to be expressed in a misleading way....

The paper presents prima facie evidence of the role of relational capital in innovation activities, and underlines the spatial and sectoral difference of the effects of relational capital on innovation processes. Relational cpaital is defined in this paper as the stock of relations that a firm...