This article deals with an evaluation performed by BETA group about th
e economic effects of EU R & D programmes (Brite, Euram and Brite-Eura
m I) on the European industry. The approach used is based on an origin
al methodology designed by BETA, which aims at evaluating those effect
s at a micro level (i.e. the participants to the programmes) by means
of direct interviews of 176 partners involved in 50 projects. The defi
nition of these economic effects is firstly described, as well as the
different steps of the evaluation work. Then the overall results of th
e study are presented, showing the importance of both ''direct'' and '
'indirect'' observed effects in monetary terms. Finally, some more det
ailed results highlight the positive impact of some aspects of the org
anization structure set up for the analyzed R & D projects on the amou
nt of observed effects: i) the participation of a university lab; ii)
the participation of at least one partner involved in a fundamental re
search work; iii) the diversity of research tasks over a scale ranging
from fundamental research to industrialization work; iv) the combinat
ion of ''user-type'' and ''producer-type'' of activity in one given or
ganisation (integration effect) or in one given project (consortia eff
ect), etc...