This paper analyzes the national and international effects of labor an
d capital income taxes in a two-country infinite-horizon perfect-fores
ight neoclassical model with endogenous labor supply and capital accum
ulation. Two polar regimes of capital income taxation are considered:
the source-based and the residence-based. The qualitative effects of l
abor income taxes are shown to be independent of the taxation regime,
whereas the effects of capital income taxes are not.