In the basic model of the literature on international environmental agreements (IEAs) (Barrett, 1994; Rubio and Ulph, 2006), the number of signatories of self-enforcing IEAs does not exceed three, if non-positive emissions are ruled out. We extend that model by introducing a composite consumer good...

This paper contributes to the discussion on Separate Accounting versus Formula Apportionment in the corporate income taxation of multinational enterprises. The innovation is that we consider a general equilibrium tax competition model with an endogenous interest rate. In contrast to previous...