Revealing the intricate effect of collaboration on innovation
Authors: Hiroyasu Inoue, Yang-Yu Liu
AI-generated Key Points
- Inventor teams outperform solo inventors statistically
- Company teams demonstrate comparable performance to solo companies
- Performance of inventor teams declines with an increase in repeat collaborations
- Company teams exhibit bursty behavior in performance; long-term collaboration does not significantly impact innovation outcomes
- Moderate levels of repeat collaboration have a positive influence on Japanese inventor teams and U.S. company teams
- Excessive repeat collaborations do not yield substantial benefits for innovation at individual or company level in both countries
Abstract: We study the Japan and U.S. patent records of several decades to demonstrate the effect of collaboration on innovation. We find that statistically inventor teams slightly outperform solo inventors while company teams perform equally well as solo companies. By tracking the performance record of individual teams we find that inventor teams' performance generally degrades with more repeat collaborations. Though company teams' performance displays strongly bursty behavior, long-term collaboration does not significantly help innovation at all. To systematically study the effect of repeat collaboration, we define the repeat collaboration number of a team as the average number of collaborations over all the teammate pairs. We find that mild repeat collaboration improves the performance of Japanese inventor teams and U.S. company teams. Yet, excessive repeat collaboration does not significantly help innovation at both the inventor and company levels in both countries. To control for unobserved heterogeneity, we perform a detailed regression analysis and the results are consistent with our simple observations. The presented results reveal the intricate effect of collaboration on innovation, which may also be observed in other creative projects.
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