Exploring the sources of downward bias in measuring inequality of opportunity

"This study analyzes the extent of downward bias in the calculation of inequality of opportunity for continuous outcomes such as income. A typically recognized source of bias is the unobserved circumstances as there is a limited set of variables available in household and labor force surveys. A...

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Main Authors: Lara Ibarra, Gabriel, Martinez Cruz, Adan L.
Institution:ETUI-European Trade Union Institute
Format: TEXT
Language:English
Published: Washington, DC 2015
World Bank
Subjects:
Online Access:https://www.labourline.org/KENTIKA-19108395124919265779-exploring-the-sources-of-downw.htm
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author Lara Ibarra, Gabriel
Martinez Cruz, Adan L.
author_facet Lara Ibarra, Gabriel
Martinez Cruz, Adan L.
collection Library items
description "This study analyzes the extent of downward bias in the calculation of inequality of opportunity for continuous outcomes such as income. A typically recognized source of bias is the unobserved circumstances as there is a limited set of variables available in household and labor force surveys. Another previously overlooked source is the likely unobservable nature of top incomes. Using Monte Carlo simulations where the underlying inequality of opportunity is predetermined at various levels, the study presents three key findings. First, the omission of a relevant circumstance can bias the inequality of opportunity estimate by as much as 80 percent, depending on how much variation of the outcome such circumstance explains. Second, not observing the top 5 percent of the income distribution can lead to downward biases of anywhere between 12 and 35 percent, and the combination of missing the most favored population and even one relevant circumstance exacerbates the bias of the empirical estimates. The third key result is that the estimated inequality of opportunity is strongly correlated with the amount of variation in the outcome variable explained by the combination of circumstances (measured by the R2). This result suggests that in empirical applications, the inequality of opportunity estimate can be roughly (and quickly) approximated using simple econometric techniques."
format TEXT
id 19108395124919265779_0aefb99d470a4401a0d34ae033e3d074
institution ETUI-European Trade Union Institute
is_hierarchy_id 19108395124919265779_0aefb99d470a4401a0d34ae033e3d074
is_hierarchy_title Exploring the sources of downward bias in measuring inequality of opportunity
language English
physical 36 p.
Digital
publishDate 2015
publisher Washington, DC
World Bank
spellingShingle Lara Ibarra, Gabriel
Martinez Cruz, Adan L.
equal rights
income distribution
social inequality
Exploring the sources of downward bias in measuring inequality of opportunity
thumbnail https://www.labourline.org/Image_prev.jpg?Archive=107489192566
title Exploring the sources of downward bias in measuring inequality of opportunity
topic equal rights
income distribution
social inequality
url https://www.labourline.org/KENTIKA-19108395124919265779-exploring-the-sources-of-downw.htm