LEADER 01017nam0-22003131i-450- 001 990003224850403321 035 $a000322485 035 $aFED01000322485 035 $a(Aleph)000322485FED01 035 $a000322485 100 $a20000920d--------km-y0itay50------ba 101 0 $aita 102 $aIT 200 1 $a<>Transition to Investment-based Social Security When Portfolio Returns and Capital Profitability Are Uncertain$fMartin Feldstein, Elena Ranguelova, Andrew Samwick 225 1 $aWorking paper series$fNBER$v7016 610 0 $aSicurezza sociale 676 $aM/4.25 676 $aM/4.3 702 1$aFeldstein,$bMartin$f<1939- > 702 1$aRanguelova,$bElena 702 1$aSamwick,$bAndrew 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990003224850403321 952 $aPaper$fSES 959 $aSES 996 $aTransition to Investment-based Social Security When Portfolio Returns and Capital Profitability Are Uncertain$9454707 997 $aUNINA DB $aING01