00333pab a2200121 454500008004000000100002100040245005000061260000900111300001000120362001100130650002400141773004600165180718b1983   xxu||||| |||| 00| 0 eng d  aDevaney, Barbara  aTotal work effort under a negative income tax  c1983  a625-7  aSummer  aIncome Tax - U.S.A.  aJournal of Policy Analysis and Management