The Portfolio Choice Channel of Wealth Inequality

Mauricio Calani and Lucas Rosso

Working Papers Central Bank of Chile from Central Bank of Chile

Abstract: This paper studies how differences in portfolio choice across households help explain the highly unequal wealth distribution seen in the data. It has been well documented that participation rates in investment in risky assets are substantially smaller than the ones predicted in standard models of portfolio choice. Also, both participation rates and risky shares are highly increasing in wealth. However, both features are usually absent in workhorse models of wealth accumulation. We introduce portfolio choice and adjustment frictions into an otherwise standard model of household saving behavior. Calibrating it to U.S. household-level data, we show that the model is able to provide a better fit of the wealth distribution while being consistent with well-known facts of households’ portfolio choices. In particular, the model explains roughly half of the gap between top wealth shares predicted by traditional models of wealth accumulation (e.g. Aiyagari, 1994) and the data.

Date: 2024-06
New Economics Papers: this item is included in nep-dcm, nep-dge, nep-fdg and nep-ipr
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Persistent link: https://EconPapers.repec.org/RePEc:chb:bcchwp:1016

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