This article analyzes profit taxation according to the arm's length principle in a model where heterogeneous firms sort into foreign outsourcing. We show that multinational firms are able to shift profits abroad even if they fully comply with the tax code. This is because, in equilibrium,...

Heterogeneous firm productivity seems to provide an argument for governments to pursue ‘pick-the-winner' strategies by subsidizing highly productive firms more, or taxing them less, than their less productive counterparts. We appraise this argument by studying the optimal choice of effective...

Firms should use all available information to anticipate future tax rates. Firm mobility, as a key determinant of corporate tax rates, is one such source of information. We first show theoretically that a government sets a higher tax rates on firm profits if average firm mobility in its...