We develop a model for determining the optimal high income linear tax rate when there exist imperfectly substitutable types of labor. If one type is disproportionately prevalent among higher income taxpayers, then wages adjust in response to more progressive taxation and part of the statutory...

Taxpayers with large amounts of non-third-party-reported income usually self-report at least a portion of it, an act inconsistent with common theories of compliance. I explain this behavior by generalizing the classical evasion theory to realistically account for the endogeneity of audit and...