This paper answers the question posed in the title within a model where agents receive idiosyncratic, wage-rate shocks that are privately observed. When the model social insurance system is comprised by the US social security and income tax system, then the maximum ex-ante welfare gain to improved insurance is equivalent to a 12.3 percent increase in consumption. We determine the reasons behind this large welfare gain. We also analyze two parametric reforms of the model social insurance system. One reform increases welfare very little, whereas the other achieves nearly all of the maximum possible welfare gain. Classification-JEL Codes: D80, D90, E21
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Paper provided by Georgetown University, Department of Economics in its series Working Papers with number
gueconwpa~06-06-11.
Length: Date of creation: Date of revision: Handle: RePEc:geo:guwopa:gueconwpa~06-06-11
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References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Browning, Martin & Hansen, Lars Peter & Heckman, James J., 1999.
"Micro data and general equilibrium models,"
Handbook of Macroeconomics,
in: J. B. Taylor & M. Woodford (ed.), Handbook of Macroeconomics, edition 1, volume 1, chapter 8, pages 543-633
Elsevier.
[Downloadable!] (restricted)
Mark Huggett & Gustavo Ventura & Amir Yaron, 2007.
"Sources of Lifetime Inequality,"
NBER Working Papers
13224, National Bureau of Economic Research, Inc.
[Downloadable!] (restricted)
Other versions:
Mark Huggett & Gustavo Ventura & Amir Yaron, 2007.
"Sources of Lifetime Inequality,"
Working Papers
gueconwpa~07-07-04, Georgetown University, Department of Economics.
[Downloadable!]
Cited by: (explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)
Mark Huggett & Gustavo Ventura & Amir Yaron, 2007.
"Sources of Lifetime Inequality,"
NBER Working Papers
13224, National Bureau of Economic Research, Inc.
[Downloadable!] (restricted)
Other versions:
Mark Huggett & Gustavo Ventura & Amir Yaron, 2007.
"Sources of Lifetime Inequality,"
Working Papers
gueconwpa~07-07-04, Georgetown University, Department of Economics.
[Downloadable!]