Since the seventies the institutionalist paradigm of the sociology of
science has gradually given way to the paradigm of a sociology of scie
ntific knowledge. The latter interprets this development as a theoreti
cal advance. In fact, however, both paradigms are complementary approa
ches within the sociology of science since their explanatory aims as w
ell as their explanatory factors are different. A revival of the insti
tutionalist paradigm is important because it is especially useful for
analyzing research policy, which has become an increasingly significan
t factor influencing research. A revitalized institutionalist paradigm
can profit from the fact that there is now a large variety of concept
s about and models of the connections between actor constellations and
institutional dynamics.