Abstract

http://ssrn.com/abstract=1112005
 
 

References (34)



 
 

Citations (20)



 


 



Deconstructing Lifecycle Expenditure


Mark Aguiar


University of Rochester - Department of Economics

Erik Hurst


University of Chicago - Booth School of Business; National Bureau of Economic Research (NBER)

March 2008

NBER Working Paper No. w13893

Abstract:     
In this paper we revisit two well-known facts regarding lifecycle expenditures. The first is the familiar "hump" shaped lifecycle profile of nondurable expenditures. We document that the behavior of total nondurables masks surprising heterogeneity in the lifecycle profile of individual sub-components. We find, for example, that while food expenditures decline after middle age, expenditures on entertainment continue to increase throughout the lifecycle. These patterns pose a challenge to models that emphasize inter-temporal substitution or movements in income, including standard models of precautionary savings, myopia, and limited commitment, to explain the lifecycle profile of expenditures. Second, we document that the increase in the cross-sectional dispersion of expenditure over the lifecycle is not greater for luxuries. In particular, the dispersion in entertainment expenditure declines relative to food expenditures as households become older, casting further doubt on theories that emphasize (exclusively) shocks to permanent income to explain the rising cross sectional expenditure dispersion over the lifecycle. We propose and test a Beckerian model that emphasizes intra-temporal substitution between time and expenditures as the opportunity cost of time varies over the lifecycle. We find this alternative model successfully explains the joint behavior of food and entertainment expenditures in the latter half of the lifecycle. The model, however, is less successful in explaining expenditure patterns early in the lifecycle.

Number of Pages in PDF File: 58

working papers series


Download This Paper

Date posted: March 21, 2008  

Suggested Citation

Aguiar, Mark and Hurst, Erik, Deconstructing Lifecycle Expenditure (March 2008). NBER Working Paper No. w13893. Available at SSRN: http://ssrn.com/abstract=1112005

Contact Information

Mark Aguiar
University of Rochester - Department of Economics ( email )
Harkness Hall
Rochester, NY 14627
United States
Erik Hurst (Contact Author)
University of Chicago - Booth School of Business ( email )
5807 S. Woodlawn Avenue
Chicago, IL 60637
United States
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
Feedback to SSRN


Paper statistics
Abstract Views: 359
Downloads: 25
References:  34
Citations:  20

© 2014 Social Science Electronic Publishing, Inc. All Rights Reserved.  FAQ   Terms of Use   Privacy Policy   Copyright   Contact Us
This page was processed by apollo1 in 0.390 seconds