[It is widely acknowledged that firms performing R&D investments are very likely to undergo financial constraints (FC) due to their specific characteristics, which make external debt an imperfect substitute for internal finance,especially for small sized enterprises. This situation calls into...

The paper empirically investigates the phenomenon of patent litigation through the analysis of the all population of European patents’ opposition cases in the telecommunication industry. We recover the complete legal history of each dispute and the patent portfolios of the firms involved. We...