Una precisazione sulla scomposizione dell?indice di redistribuzione RE di Aronson-Johnson-Lambert e una proposta di estensione dell?indice di Plotnick
AbstractAronson-Johnson-Lambert redistribution index RE can be correctly applied provided that after taxation incomes maintain the same pre-tax order in what it concerns (i) group average incomes and (ii) within group incomes. If this is not the case, R should be replaced by the transvariation index defined e. g. by Dagum (1997). Of course when R is different from the tranvariation index, in considering RE one neglects income rerankings between groups averages and within groups incomes. This note suggests how information on rerankings may be recovered, through a proper decomposition of Plotnick index. The decomposed Plotnick index might be a useful tool in choosing optimal interval bandwidth, controlling either for group-average reranking and within group reranking. Moreover minor suggestions are added which might be applied in analyzing taxation effects for incomes grouped according to socio-demographic or other criterions.
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Bibliographic InfoPaper provided by Department of Economics, Management and Quantitative Methods at Università degli Studi di Milano in its series Departmental Working Papers with number 2006-28.
Date of creation: 18 Oct 2006
Date of revision:
Horizontal and Vertical Equity; Gini index and concentration index decompositions; redistribution index; reranking indexes;
Other versions of this item:
- Achille Vernizzi, 2007. "Una precisazione sulla scomposizione dell'indice di redistribuzione RE di Aronson-Johnson-Lambert e una proposta di estensione dell'indice di Plotnick," ECONOMIA PUBBLICA, FrancoAngeli Editore, vol. 2007(1-2), pages 145-154.
- D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
- H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
- H22 - Public Economics - - Taxation, Subsidies, and Revenue - - - Incidence
- H24 - Public Economics - - Taxation, Subsidies, and Revenue - - - Personal Income and Other Nonbusiness Taxes and Subsidies
- H31 - Public Economics - - Fiscal Policies and Behavior of Economic Agents - - - Household
- I31 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - General Welfare, Well-Being
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-10-28 (All new papers)
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