Financial constraints for R&D and innovation: new evidence from a survey experiment

We utilize a survey experiment to evaluate the existence and degree of financial constraints for R&D. The experiment not only allows for the deduction of the presence of financial constraints but also for evaluating their economic significance. Using data on German companies, we find that financial constraints exist, but their relevance might have been overestimated in the literature. Most R&D projects that have not been implemented because of financial constraints seem to have low expected marginal rates of return. While this finding contrasts with other studies, we also find results that align with the literature: young firms are most constrained, and the constraints occur at the intensive margin, i.e. our results do not suggest that firms are deterred from innovation. Instead, highly innovative companies are restricted by the capital market. Small firms, in particular, had innovation projects in their portfolios that were not implemented.

Czarnitzki, Dirk und Marek Giebel (2024), Financial constraints for R&D and innovation: new evidence from a survey experiment, Applied Economics