In theory, the U.S. tax system aims to attribute and tax all business income to individuals. But the tax treatment of this income varies. Pass-through income is taxed when earned; capital-gains income is taxed when realized; dividends when distributed; other forms of business income may escape...

Standard models suggest that adverse labor demand shocks will lead to bigger employment losses if institutional factors like minimum wages and trade unions prevent downward wage adjustments. Some economists have argued that this insight explains the contrast between the United States, where real...