Is commercialization good or bad for science? Individual-level evidence from the Max Planck Society

Based on new data, this paper studies the invention disclosure, licensing, and spin-off activities of Max Planck Institute directors over the time period 1985-2004, analyzing their effects on the scientists' subsequent publication and citation records. Consistent with prior findings, inventing does not adversely affect research output. Mixed results are obtained with regard to commercialization activities. The analysis suggests qualifications to earlier explanations of positive relationships between inventing and publishing.