This work investigates the relationship between proxies of innovation activities, such as patents and trademarks, and … firms, in terms of patents and trademarks, and we study whether the two instruments for protecting IP exhibit …) between the patents and trademarks owned by the same firm and we then investigate whether such concordance exert any effect on …

Licensing in a patent thicket allows firms to either avoid or resolve hold-up. Firms' R&D incentives depend on whether … they license ex ante or ex post. We develop a model of a patent portfolio race, which allows for endogenous R&D efforts, to … likely to avoid patent portfolio races, since the threat of hold-up increases. On the other hand, more valuable technologies …

main dataset covers their intellectual properties, patents and trademarks, filed between 2005 and 2012. The paper extends …