This paper aims to evaluate the additionality of innovation policy in terms of innovative behaviours at the regional level. Innovative behaviours are identified both within and across firm and regional boundaries. The role of policy is evaluated for a sample of firms in the Italian region of Emilia–Romagna (ER), exploiting an original, survey-based data set. Propensity score matching is applied to investigate the effects of an innovation subsidy. Funded firms are found to be more likely to upgrade their competencies, compared with similar non-subsidized firms. On the other hand, in most cases, innovation cooperation with other business partners within or outside the region is not significantly affected by policy. Ultimately, the investigated innovation policy in the ER region seems to show what might be termed “cognitive capacity additionality”, rather than “network additionality”.