This paper analyzes the effects of uncertainty, rent dissipation, and a bundle of patents on corporate licenses. We use a newly developed data set, based on a large-scale survey (4,000 patents) of Japanese inventors, which uniquely covers the nature of the underlying research projects. Our major...

This paper analyzes how standards as a knowledge source are important for R&D, how significantly the (backward) citations by a patent of standard-related documents measure such knowledge flow, and how significantly they affect the performance of downstream R&D. Using both the RIETI inventor...

This paper explores the sources of firm-level scale economies in R&D, based on unique project-level data from a new large-scale survey of Japanese inventors, matched with firmlevel data. We focus on four sources: complementary assets, internal and external knowledge inflows, and inventor team...