00398pab a2200145 454500008004000000100002300040245006400063260000900127300001600136362000800152650001800160650002000178700001900198773003500217180718b2007   xxu||||| |||| 00| 0 eng d  aNishiyama, Shinich  aDoes social security privatization produce efficiency gains  c2007  ap.1677-719.  aNov  aPrivatization  aSocial security  aSmetters, Kent  aQuarterly Journal of Economics