The income of Puerto Rican affiliates of U.S. corporations is essentially untaxed by either Puerto Rico or the U.S. This lowers the tax penalty on real investment there, and also makes it attractive to shift reported taxable income from the U.S. parent corporation to the Puerto Rican affiliate....

The income of Puerto Rican affiliates of U.S. corporations is essentially untaxed by either Puerto Rico or the United States. This lowers the tax penalty on investment there, and also makes it attractive to shift reported taxable income from the U.S. parent corporation to the Puerto Rican...

We use data from the U.S. Treasury corporate tax files for 1984 and 1992 to address two related questions concerning the investment decisions of U.S. multinational corporations. How sensitive are investment location decisions to tax rate differences across countries, and have investment location...