Negative taxes and the poverty problem : a background paper prepared for a conference of experts held June 8-9, 1966, together with a summary of the conference discussion / Christopher Green Green, Christopher, 1937- Poor United States. Income United States. HC110.P6 G74 336.2 GRN Includes index. Bibliography: p. 197-202. Washington : Brookings Institution, 1967. 1967. 1967 Text xiv, 210 p. : eng Studies of government finance United States. United States.