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inequality 0.1.0
Inequality indices
- Gini coefficient with bootstrap or asymptotic (jackknife) confidence
intervals via
iq_gini(), following Davidson (2009).
- Extended S-Gini family with adjustable inequality aversion parameter
via
iq_sgini(), following Donaldson and Weymark
(1980).
- Theil T (GE(1)), mean log deviation (GE(0)), and general GE(alpha)
via
iq_theil(), following Theil (1967) and Shorrocks
(1980).
- Atkinson index with inequality aversion parameter via
iq_atkinson().
- Kolm absolute inequality index via
iq_kolm().
- Palma ratio (top 10% / bottom 40% income shares) via
iq_palma().
- Hoover index (Robin Hood / Pietra index) via
iq_hoover().
- Percentile ratios (P90/P10, P80/P20, custom) via
iq_percentile_ratio().
Distribution and
decomposition
- Lorenz curve with base graphics plot method via
iq_lorenz().
- Between-within group decomposition for the generalised entropy
family via
iq_decompose(), following Bourguignon
(1979).
- Income share tabulation (bottom 50%, middle 40%, top 10%, top 1%)
via
iq_shares().
- Concentration index for health inequality with optional Erreygers
(2009) correction via
iq_concentration().
- Wolfson bipolarisation index via
iq_polarisation().
Poverty
- Foster-Greer-Thorbecke poverty measures (headcount, gap, severity),
Sen index, and Watts index via
iq_poverty().
- Growth incidence curve with plot method via
iq_growth_incidence(), following Ravallion and Chen
(2003).
Fiscal
- Kakwani progressivity index and Reynolds-Smolensky redistribution
index via
iq_kakwani().
Utilities
- Side-by-side comparison of all major indices via
iq_compare().
- All functions accept optional survey weights.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.