Comparing inequality and mobility in linear models

摘要

This note shows that income risk and capital risk affect mobility and inequality asymmetrically in the linear model analysed by Zhu (2013). Inequality responds to changes in both income risk and capital risk, while mobility responds to changes in capital risk and may not respond to changes in income risk. Consequently, income tax reduces wealth inequality without affecting wealth mobility, while tax on capital returns reduces wealth inequality and increases wealth mobility. (C) 2018 Published by Elsevier B.V.