Recent exchanges in the literature on the identification and role of key sectors in national and regional economies have highlighted the difficulties of consensus regarding terminology, appropriate measurement as well as economic interpretation. In this paper, some new perspectives are advanced...

Recentes debates na literatura sobre a identificacao e o papel de setores-chave em nivel nacional e regional destacam as dificuldades de um consenso com respeito a terminologia, ao metodo de medicao e a interpretacao economica a serem usados. Neste trabalho, novas perspectivas sao apresentadas...