Hornuf, Lars MPI for Innovation and Competition, Max Planck Society;
https://ssrn.com/abstract=3211805 (Preprint)
https://www.cesifo-group.de/DocDL/cesifo1_wp7153.pdf (Preprint)
Hornuf, L., & Jeworrek, S. (2018). Crowdsourced Innovation: How Community Managers Affect Crowd Activities. Max Planck Institute for Innovation & Competition Research Paper, No. 18-16.