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RETIREMENT WEALTH AND LIFETIME EARNINGS *
Author(s) -
Hendricks Lutz
Publication year - 2007
Publication title -
international economic review
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.658
H-Index - 86
eISSN - 1468-2354
pISSN - 0020-6598
DOI - 10.1111/j.1468-2354.2007.00433.x
Subject(s) - earnings , economics , distribution (mathematics) , inequality , health and retirement study , panel study of income dynamics , labour economics , wealth distribution , finance , gerontology , medicine , mathematical analysis , mathematics
This article argues that a satisfactory theory of wealth inequality should account not only for the marginal distribution of wealth, but also for the joint distribution of wealth and earnings. The article describes the joint distribution of retirement wealth and lifetime earnings in the Panel Study of Income Dynamics. It then evaluates the ability of a stochastic life‐cycle model to account for key features of this distribution. The life‐cycle model fails to account for three key features of the data. (1) The correlation between lifetime earnings and retirement wealth is too high. (2) The wealth gaps between earnings rich and earnings poor households are too large. (3) Wealth inequality among households with similar lifetime earnings is too small. Models in which households differ in rates of return or time preferences account much better for the joint distribution of retirement wealth and lifetime earnings.