An adverse social welfare consequence of a rich-to-poor income transfer: A relative deprivation approach
Grzegorz Kosiorowski and
No 264176, Discussion Papers from University of Bonn, Center for Development Research (ZEF)
A transfer from a richer individual to a poorer one seems to be the most intuitive and straightforward way of reducing income inequality in a society. However, can such a transfer reduce the welfare of the society? We show that a rich-to-poor transfer can induce a response in the individuals’ behaviors which actually exacerbates, rather than reduces, income inequality as measured by the Gini index. We use this result as an input in assessing the social welfare consequence of the transfer. Measuring social welfare by Sen’s social welfare function, we show that the transfer reduces social welfare. These two results are possible even for individuals whose utility functions are relatively simple (namely, at most quadratic in all terms) and incorporate a distaste for low relative income. We first present the two results for a population of two individuals. We subsequently provide several generalizations. We show that our argument holds for a population of any size, and that the choice of utility functions which trigger this response is not singular - the results obtain for an open set of the space of admissible utility functions. In addition, we show that a rich-to-poor transfer can exacerbate inequality when we employ Lorenz-domination, and that it can decrease social welfare when we draw on any increasing, Schur-concave welfare function.
Keywords: Public; Economics (search for similar items in EconPapers)
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Chapter: An Adverse Social Welfare Consequence of a Rich-to-Poor Income Transfer: A Relative Deprivation Approach (2017)
Working Paper: An adverse social welfare consequence of a rich-to-poor income transfer: A relative deprivation approach (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:ags:ubzefd:264176
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