Changing progressivity as a means of risk protection in investment-based Social Security
By: Andrew A. Samwick.
Contributors: National Bureau of Economic Research.
Series: NBER working paper series -- no. 13059.; Working paper series (National Bureau of Economic Research) -- working paper no. 13059.
Publisher: National Bureau of Economic Research
Published: 2007
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 45
Subjects: Social security -- Mathematical models
Notes: Includes bibliographical references (p. 28-29).

Also available in PDF from the NBER world wide web site (www.nber.org).