Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/87240 
Authors: 
Year of Publication: 
2011
Series/Report no.: 
Tinbergen Institute Discussion Paper No. 11-144/2
Publisher: 
Tinbergen Institute, Amsterdam and Rotterdam
Abstract: 
Micro data are used for the US over the period 1968 - 1992 to estimate time-varying specifications for the conditional variance of earnings of individual households. Specifications estimated are standard and quadratic ARCH and GARCH processes. The cross-sectional mean of the estimated time-varying uncertainty of individual households is found to have a significant impact on aggregate consumption growth implying that earnings uncertainty and precautionary saving motives matter for the aggregate economy. The estimation of a buffer stock model of consumption with time-varying earnings uncertainty provides an estimated precautionary component in aggregate consumption growth. The importance of this component is found to decrease over the sample period, a result which is in line with the existing literature.
Subjects: 
aggregate consumption
earnings
precaution
ARCH errors
JEL: 
E21
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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