costs. Research therefore repeatedly stressed the positive relationship between collaborative R&D and innovation performance … terms of gains for innovation performance, but also show that collaboration has decreasing and even negative returns on … product innovation if its intensity increases above a certain threshold. In particular, costs start outweighing benefits if a …

costs. Research therefore repeatedly stressed the positive relationship between collaborative R&D and innovation performance … collaborative R&D projects in total R&D projects is associated with a higher probability of product innovation and with a higher … market success of new products. While we can confirm previous findings in terms of gains for innovation performance, we also …

and patent productivity of the respective regional innovation systems (RIS). The empirical analysis is for nine German …