The main aim of this paper is to observe the environmental behaviour in some cities of the word, by analyzing for each city the trends of several energy and emissions indicators that appear as explanatory variables in both energy and labour average productivity equations. At the same time we...

This paper explores the impact of industrial clusters on regional growth at level of German labour market regions within a regional convergence model. It focuses on vertically connected industrial sectors, which can emerge parallel to horizontal interconnections. Based on works of Schnabl (2000)...