Abstract
Purpose. This paper aims to advance the understanding regarding the profiting of collaborative innovation practices, focusing particularly on how the intensity of collaboration along the innovation process and the relatedness between the partners' technological bases affect the outcomes of such process in terms of efficiency and generation of technological innovations. Design/methodology/approach. Drawing on the results from causal models and the estimation of average marginal effects, this research analyses the direct and joint effect of technological proximity and intensity of collaboration in the early and late phases of the process. Findings. The findings suggest that there is a positive unconditional relationship between the aforementioned aspects and innovative performance and that the joint effects diverge depending on the stage of the process, i.e. while in the early phase collaborating intensely with close partners seems to be advisable, this circumstance proves to be problematic in the late phase of the innovation process. Originality/value. The analysis developed provides clarity regarding relevant aspects of collaborative innovation practices, particularly, the search for and selection of optimal partners. In general terms, the evidence found here suggests seeking for collaborating intensely along the whole process with partners whose technological bases present a tight matchup with that of the focal firm. Results also call for awareness of the potential drawbacks derived from intense collaborations with close partners in the late phases of the process, thus hinting toward the convenience of developing protection mechanisms. In addition, this work provides interesting insights that challenge the notion of "proximity paradox" and set out further questions that might be worth considering for future research.