Table 3.-Tax Liability Under Present Law and Under Declining Percentage Earned Income Deduction with a Uniform 4 Point Increase in Tax Rates for Single and Various Types of Joint Returns, All with 4 Exemptions, at Selected Income Levels a All tax computations on the table assume 4 exemptions and bSince exemptions and deductions are the same for single COne-fifth is approximately the median proportion of family dWives very infrequently earn this proportion of family eThe ratio of new tax means, for example, that at the $5,000 ble 4.-Earnings of Married Women (Husband Present) as a Percent of Family Income in 1965, by Table 5.-Estimated Number of Taxable Joint Returns With Wives Who Work and Wives Who Do Not |