Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We explore the interaction between public support for R&D and appropriability using a dataset constructed from the Spanish Community Innovation Survey, for the period 2000–2005. We find that public support policy is less able to stimulate privately financed internal R&D in firms where appropriability mechanisms are more effective. On average, the effect of public support for R&D is three times larger for those firms reporting a level of appropriability below the median vis‐à‐vis those firms for which appropriability is above the median level. Furthermore, for supported firms with the highest degree of appropriability, crowding out cannot be ruled out.