Much of the debate over taxing the wealthy focuses on taxing giant salaries.
But a new study from the nonpartisan Tax Policy Center found that the real money for the wealthy is made from investments and business income—not compensation.
The paper, from Joseph Rosenberg, takes a broader definition of income. The so-called "Expanded Cash Income" includes retirement and health-care benefits, retirement income, tax-exempt interest and other add-ons aimed at providing a more accurate picture of the nation's income distribution.
