@techreport{NBERw12554,
 title = "Differential Mortality, Uncertain Medical Expenses, and the Saving of Elderly Singles",
 author = "Mariacristina De Nardi and Eric French and John Bailey Jones",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12554",
 year = "2006",
 month = "October",
 URL = "http://www.nber.org/papers/w12554",
}