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Inherited inequality: a general framework and an application to South Africa

Paolo Brunori, Francisco Ferreira and Pedro Salas-Rojo
Authors registered in the RePEc Author Service: PEDRO SALAS ROJO, Jr.

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: Scholars have sought to quantify the extent of inequality which is inherited from past generations in many different ways, including a large body of work on intergenerational mobility and inequality of opportunity. This paper makes three contributions to that broad literature. First, we show that many of the most prominent approaches to measuring mobility or inequality of opportunity fit within a general framework which involves, as a first step, a calculation of the extent to which inherited circumstances can predict current incomes. The importance of prediction has led to recent applications of machine learning tools to solve the model selection challenge in the presence of competing upward and downward biases. Our second contribution is to apply transformation trees to the computation of inequality of opportunity. Because the algorithm is built on a likelihood maximization that involves splitting the sample into groups with the most salient differences between their conditional cumulative distributions, it is particularly well-suited to measuring ex-post inequality of opportunity, following Roemer (1998). Our third contribution is to apply the method to data from South Africa, arguably the world’s most unequal country, and find that almost threequarters of its current inequality is inherited from predetermined circumstances, with race playing the largest role, but parental background also making an important contribution.

Keywords: inequality; opportunity; mobility; transformation trees; South Africa (search for similar items in EconPapers)
JEL-codes: D31 D63 J62 (search for similar items in EconPapers)
Pages: 50 pages
Date: 2023-09-01
New Economics Papers: this item is included in nep-afr, nep-big and nep-ltv
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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http://eprints.lse.ac.uk/120308/ Open access version. (application/pdf)

Related works:
Working Paper: Inherited Inequality: A General Framework and an Application to South Africa (2024) Downloads
Working Paper: Inherited inequality: a general framework and an application to South Africa Downloads
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