Thomas Piketty's widely-noted and bestselling book, Capital in the Twenty-First Century, does much to advance our empirical understanding of rising high-end wealth concentration, which is one of the central issues of our time. But its theoretical approach and policy recommendations differ...

Introduction -- The why and the what of taxing income -- The private sphere and te public sphere -- When is it income? -- Debt and certain other financial instruments -- Whose income is it? -- Expenses of earning income -- Tax shelters and tax planning -- Mixed business and personal expenses --...