“…Clearly, because spillovers vanish under this type of cooperation, the same results obtain with deterministic one-way R&D spillovers. 5 In the third and most important part of the paper, we consider a benevolent central planner with a second-best mandate, that is, one that can decide on R&D investments without intervening as far as market conduct is concerned (as 2 That spillovers are an important aspect of firms' overall business strategy is well documented (see, e.g., Billand, Bravard, Chakrabarti, & Sarangi, 2016, for an overview of the related literature). In addition, there are multiple channels through which spillovers might flow, including in trade-related contexts (see, e.g., Ferrier, Reyes, & Zhu, 2016). in Suzumura, 1992).…”