This article examines the ways in which International Scientific Collaboration, as observed by the co-authorship of journal articles written by local scientists and partners located overseas, affects the ability of research teams to produce bibliographic outputs and to contribute to local knowledge. A sample of 672 teams was randomly selected for the analyses. In addition, 20 interviews with experts and team members were administered to discuss models and results. Results show that co-authoring with partners located overseas increases team output by nearly 40% and by between three and five bibliographic products. It also shows that a team's odds of involving Colombia in its research process are 2.2 times larger for those co-authoring with a partner located overseas than for those that do not. Theoretical and policy implications are discussed.