TY - BOOK AU - Foster,Richard S. ED - E.U.A. Department of Health and Human Services TI - Short-range actuarial projections of the old-age, survivors, and disability insurance program, 1991 T2 - SSA Pub. No. 11-11550 U1 - 368.40973 21 PY - 1991/// CY - Baltimore PB - SSA. Office of the Actuary KW - Jubilaciones y pensiones KW - Costos KW - Estados Unidos KW - Seguridad social N1 - I Background. II Assumption. III Benefit payment. IV Trust fund income and outgo. V Estímate based on alternative assumptions ER -