As a united global economy evolves, economists and policymakers are forced to consider whether the current system of taxing income is inconsistent with the trend toward liberalized world financial flows and increased international competition. To help assess existing tax policies and incentives,...

It is argued that taxation causes three kinds of deadweight losses and two types of direct costs. The deadweight losses arise from substitution, evasion, and avoidance activities while the direct costs are administrative and compliance costs. Some of these social costs tend to be discontinuous...