Publications
Publications
- 2023
- HBS Working Paper Series
Evaluation and Learning in R&D Investment
By: Alexander P. Frankel, Joshua L. Krieger, Danielle Li and Dimitris Papanikolaou
Abstract
We examine the role of spillover learning in shaping the value of exploratory versus incremental
R&D. Using data from drug development, we show that novel drug candidates generate more
knowledge spillovers than incremental ones. Despite being less likely to reach regulatory
approval, they are more likely to inspire subsequent successful drugs. We introduce a model
where firms are better able to evaluate the viability of incremental drugs, but where investing in
novel drugs helps firms learn about future projects. Firms appear to put more value on evaluation
versus learning, and those patterns are in-part driven by the appropriability of spillovers.
Keywords
Citation
Frankel, Alexander P., Joshua L. Krieger, Danielle Li, and Dimitris Papanikolaou. "Evaluation and Learning in R&D Investment." Harvard Business School Working Paper, No. 23-074, May 2023. (NBER Working Paper Series, No. 31290, May 2023.)