This article traces the changing impact of national differences on the geographical and industry diversification strategy of leading firms in Europe in 1987-2000, a period of intensified European integration. The results indicate that, whereas country of origin had a significant effect at the...

This paper starts from the antitrust practices in the European Community and the US with respect to the delineation of the relevant geographic market in dealing with concentrations and shows that regulations and guidelines at this moment focus almost exclusively on demand substitution. However,...