1 evolutionary pattern of innovation and product life cycle empirical evidences form the electric motors technology edmar luiz f de almeida communication to european meeting on applied economics 7 9 june 1999 grenoble france organised by institute for energy politics organisé par l institut d economie et politique energie iepe bp 47 38040 cedex inra unit sociology research development unité sociologie la recherche développement serd 2 université ii tél 0476514240 fax 0476514527 email upmf fr abstract this paper aims contribute analyse interdependencies between patterns industry structure means an interpretation case study emt tries link evolution during its s competition show main driving forces shift in
