Delfino Silva, Emilson - 2019
(overlapping climate clubs) to reduce CO2 emissions. R&D provision in clubs produces two types of positive externalities: a global …&D collaborators. We utilize the perfectly-coalition-proof-Nash equilibrium (PCPNE) concept to refine the set of Nash equilibria … multilateral coalitional structures are not stable; however, the size of the stable coalition increases as the economy expands …