DOES THE EFFECT OF PUBLIC SUPPORT FOR R&D DEPEND ON THE DEGREE OF APPROPRIABILITY?*
利用西班牙社区创新调查2000-2005年数据，研究发现公共研发支持对内部研发的刺激作用在可占有性机制更有效的企业中较弱，高可占有性企业甚至可能出现挤出效应。
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.