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ABSTRACTWe evaluate proposals for the reform of the U.S. system of taxing cross-border income including dividend exemption, full current inclusion, a Japanese type version of dividend exemption with an effective tax rate test subject to an exception for an active business, dividend exemption combined with a minimum tax, and repeal of check-the-box. We consider two versions of dividend exemption with a minimum tax: one in which the minimum tax is imposed on a country by country basis and another in which the minimum tax is based on overall foreign income. In addition we evaluate versions of minimum taxes that allow current deductions for tangible investment against the minimum tax base.To compare these schemes with current law, we reevaluate the efficiency cost of the dividend repatriation tax using evidence from the response to the 2005 repatriation tax holiday. We find that the burden of avoiding repatriations is higher than found in previous estimates, particularly for high tech profitable foreign businesses, and rises as deferrals accumulate. We simulate the effect of the various alternatives on effective tax rates for investment in high and low tax countries with inclusion of the importance of parent developed intangibles and their role in shifting income from the United States.Our analysis demonstrates that it is possible to make improvements to the system across many dimensions including the lockout effect, income shifting, the choice of location and complexity. The goals are not necessarily in conflict. Compared to the other schemes, we find the per country minimum tax with expensing for real investment has many advantages with respect to these margins. The per country minimum tax offsets (at least in part) the increased incentives for income shifting under pure dividend exemption and is better than full inclus...