International tax competition with endogenous sequencing

This paper examines endogenous timing in an international tax competition model. Unlike existing studies, governments are assumed to decide not only tax rates but also whether they are set early or late. The Nash equilibrium provides four conclusions for alternative double tax allowances. First, tax deductions cause simultaneous tax competition, whereas tax credits yield sequential tax competition. Second, any double taxation relief would generate capital trade. Third, a credit system could maximize one country’s economic welfare but would lower another country’s economic welfare more than a deduction regime. Fourth, a home country’s government would choose credit regimes under a maximax rule, but select deduction methods under minimax and maximin rules, while all double tax allowances are indifferent to a host country. The findings resolve the question raised by Bond and Samuelson (Economic Journal 99:1099–1111, 1989) of why governments choose tax credits when tax deductions are clearly better. Namely, this paper shows that one country is better off but another is worse off with credits rather than deductions. Accordingly, we cannot clearly specify whether governments choose credit systems or deduction regimes. The possible double tax allowances employed by the governments depend on their own decision criterion.