ecomod 2005 international conference on policy modeling istanbul june 29 july 2 an assessment of the technology s impacts mergers and acquisitions in spain raquel marín instituto complutense de estudios internacionales universidad madrid e mail rmarinsa icei ucm es isabel álvarez abstract recent trends internationalisation firm reveal how m&as have achieved without any doubt one most crucial roles among fdi operations having shown a spectacular growth last decade technological component is observed as critical aspect for decision via however this body literature question about impact activities at level still open then working hypothesis paper whether to what extent generates changes profile firms availability microdata spanish manufacturing industries permits us comparison both economic performance innovative behaviour involved between domestic those which take place foreign owned