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Wie viel Sparen fürs Alter ist sinnvoll?
Numberger, Siegfried, (2005)
The Differential Factors Influencing Saving through Life Insurance and Special Focus on Interest-Rate
Zhuo, Zhi, (1998)
BEA - Bureau of Economic Analysis - National Economic Accounts
Principles of random walk
Spitzer, Frank, (1976)
The characterization of optimal saving programs in a quadratic model
Revisiting the Mitra-Wan Tree Farm.
Wan Jr., Henry, (1994)