Interstratos (Internationalization of strategic orientations of small and medium European enterprises) is a joint research project1 in which researchers from eight European countries cooperate in studying the international behaviour of small and medium firms. On the initiative of Rik Donckels, Erwin Fröhlich, Antti Haahti and J. Hanns Pichler our aim in the research programme is to explore international opera­ tions in manufacturing industry. So far we have amassed an extra­ ordinary amount of data (over 5,000 observations per annum over five years) with the possibility of gaining extensive comparative insight into more than 4,000 European firms and a panel of about 800 firms.