Increasing Returns to Savings and Wealth Inequality

Claudio Campanale ()

Review of Economic Dynamics, 2007, vol. 10, issue 4, 646-675

Abstract: In this paper I present an explanation to the fact that in the data wealth is substantially more concentrated than income. Starting from the observation that the composition of households' portfolios changes towards a larger share of high-yield assets as the level of net worth increases, I first use data on historical asset returns and portfolio composition by wealth level to construct an empirical return function. I then augment an Overlapping Generation version of the standard neoclassical growth model with idiosyncratic labor income risk and missing insurance markets to allow for returns to savings to be increasing in the level of accumulated assets. The quantitative properties of the model are examined and show that an empirically plausible difference between the return faced by poor and wealthy agents is able to generate a substantial increase in wealth inequality compared to the basic model, enough to match the Gini index and all but the top 1 percentile of the U.S. distribution of wealth. (Copyright: Elsevier)

Keywords: Wealth inequality; Self-insurance; Portfolio composition; Increasing returns (search for similar items in EconPapers)
JEL-codes: D31 E21 G11 (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (24)

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Related works:
Working Paper: Increasing Returns to Saving and Wealth Inequality (2005)
Working Paper: INCREASING RETURNS TO SAVINGS AND WEALTH INEQUALITY (2005)
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DOI: 10.1016/j.red.2007.02.003

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