00350pab a2200133 454500008004000000100002700040245005700067260000900124300001500133362000800148650002000156700001900176773002100195180718b2007   xxu||||| |||| 00| 0 eng d  aConde-Ruiz, J. Ignacio  aThe redistributive design of social security systems  c2007  ap.686-712.  aApr  aSocial security  aProfeta, Paola  aEconomic Journal