A Multidisciplinary Research Programme (MRP) is being developed since 1989 in the Universidad Complutense de Madrid (UCM),
Spain, to support cross-disciplinary research projects. This paper analyses the incidence of interdisciplinarity in the UCM
scientific publications over the period 1990–96 and tries to determine the success of the Programme at fostering cross-disciplinary
research. Interdisciplinary in the UCM is measured through the collaboration of authors from different institutional addresses
within the UCM, both in scientific publications and in research projects. Publications jointly signed by the different teams
that collaborate in the projects were identified as an indicator of the success of the Programme in integrating disciplines.
Interdisciplinary collaboration within the UCM showed an upward trend over time. Publications of MRP groups showed a higher
interdisciplinary collaboration rate than the rest of the UCM (17% vs. 9%). Dramatic repercussions of the Programme were not
expected due to its limited magnitude, but it worked as a catalyst, enhancing interdisciplinary relations within the UCM.
The interest of such a programme is supported by its effects, both direct effects on granted teams and indirect on the whole