FEDS Paper: Mega Firms and New Technological Trajectories in the U.S.
Joonkyu Choi, Serguey Braguinsky, Yuheng Ding, Karam Jo, Seula KimWe provide evidence that mega firms have played an increasingly important role in shaping new technological trajectories in recent years. While the share of novel patents—defined as patents introducing new combinations of technological components— produced by mega firms declined until around 2000, it has rebounded sharply since then.