Sector heterogeneity and dynamic effects of innovation subsidies: Evidence from Horizon 2020

We evaluate the effect of a pan-European innovation funding program on firm growth and innovative output. Using a difference-in-differences estimation on a sample of matched firms, we find that subsidized firms are able to invest more in tangible and intangible assets, achieve higher growth of turnover and employment, and file more patent applications. We then analyze the dynamic treatment effect and find that the effects of subsidization tend to get stronger over time. Moreover, our findings indicate that the effect of subsidization is highly heterogeneous across sectors with different R&D or knowledge intensity and level of competition. Finally, we explore some economic channels to explain how subsidies generate strong effects on firm performance. We show that subsidized firms are able to generate more internal financing and attract more long-term borrowing after receiving the subsidy, yet we find no evidence that subsidized firms are able to attract more external equity financing than similar unsubsidized firms. •We analyze the effect of Horizon 2020 subsidies on firms’ growth and innovations.•We analyze these effects dynamically up to five years after subsidization.•We document significant sectoral heterogeneity in the effects of the subsidies.•This heterogeneity is particularly visible in firms’ growth but much less in patenting.•Increased external debt and internal financing are important economic channels.