This paper models externalities of production across regional economies. Under the assumption that knowledge diffuses without political or administrative barriers, we derive externalities that affect the steady state and the process of growth of each economy. The empirical counterpart of the...

Although the choice of the spatial scale of analysis is a problematic issue in applied research (specifically, in the literature of regional economic growth), it is evident that regional scientists have been very slow at demonstrating the implications of aggregation problems on empirical...

Energy is always the important material for economic growth and social development. A new index of energy efficiency called total factor energy efficiency (TFEE) consists of energy, capital, labor and other input that produce GDP as output. TFEE index is accounted by DEA through multiple...

ABSTRACT. A new urban revolution begun in the second half of the XX century and it is going to challenge the relation between the size and economic role of cities: on one side, the last decades have witnessed the emergence and the never seen growth of a number of Mega-cities, with more than 9...