| LDR | | 00605namu 2200169 k 4500 |
| 001 | | 000000015949 |
| 005 | | 20010101000000 |
| 008 | | 950825s1987 us a 00000 eng d |
| 040 | |
▼a 247004 |
| 049 | 0 |
▼l M0065203
▼l M0096699 |
| 090 | |
▼a 320
▼b N273
▼c NO.2257 |
| 100 | 10 |
▼a Bernheim, B. Douglas |
| 245 | 10 |
▼a Social security benefits :
▼b an empirical study of expectations and realizations /
▼d B. Douglas Bernheim |
| 260 | 0 |
▼a Cambridge :
▼b National Bureau of Economic Research,
▼c 1987 |
| 300 | |
▼a 47, 4 v. :
▼b ill. ;
▼c 26 cm |
| 440 | 0 |
▼a NBER Working paper series ;
▼v no. 2257 |
| 710 | 20 |
▼a National Bureau of Economic Research |