We consider international labor (entrepreneur) mobility in a two-country overlapping-generations model. Interactions of decreasing and increasing returns in production yield multiple equilibria that are stable under adaptive learning. Governments have an unilateral incentive to reduce income taxes at the joint optimum. We compare the Nash equilibrium in taxes under full labor mobility to the closed economy with no mobility. Despite strategic tax setting, the free mobility outcome is often better in welfare terms. Large, discrete gains in welfare may be attained because of the tax competition. Expectational barriers for discrete welfare improvements can be overcome through tax competition.
Honkapohja, Seppo and Turunen-Red, Arja, "Gains and losses from tax competition with migration" (2004). Department of Economics and Finance Working Papers, 1991-2006. Paper 21.