In the Netherlands the research worker in the universities on an average publishes in scientific journals three times as much as the scientist in industry. However, the universities differ considerably regarding their publications score per scientists; although this difference is diminishing. Furthermore this study shows per discipline the level of co-operation between Dutch and foreign research establishments. In general the level of co-operation with other research institutes has no positive effect on output. The analysis does show that the institutions with the largest financial support from the Research Council (an organization with the task of improving the output of research by means of fostering co-operation between research workers) are also the most productive ones.