Can a focus on breakthrough technologies improve the performance of international environmental agreements?

In a recent paper, Barrett (Am Econ Rev 96(2):22–25, 2006) reaches the conclusion that in general the answer to the question in the title is no, except for a special case in which technology adoption involves increasing returns (network externalities). We show in this paper that a focus on the R&D phase in the development of breakthrough technologies can also increase the possibilities for cooperation.