In many countries fairly large and persistent regional disparities can be observed for a variety of economic indicators. Since these disparities can not be reduced to one single dimension, a classification system is needed to give a parsimonious overview. The article presents a system which is...

Much emphasis on the sectoral perspective in economics originates in the observation of the diverse and contingent nature of competitive behaviour, where a firm's performance depends on the capability to match its organisation and strategy to the technological, social and economic restrictions...