“…(Shorrocks, 1998;Lambert, 1997 and1998) Axioms 1 to 4 are widely accepted in the inequality literature and so we will not comment on these further (Lambert, 2001). Conversely, the focus axiom is chiefly used in the literature on poverty and has important implications for the inequity measure that we obtain.…”
This is the submitted version of the paper.This version of the publication may differ from the final published version. Abstract: This paper proposes a new approach to the measurement of inequality and inequity in the delivery of health care based on contributions from the literature on poverty and deprivation. This approach has some appealing characteristics: 1) inequity is additively decomposable by population subgroups; 2) the approach does not rely on socio-economic ranks; 3) it provides a graphical representation of the distribution of inequity; 4) it offers a range of indices consistent with dominance. An empirical application is provided investigating the effect of the GP fundholding reform on equity in English NHS. The results show that the most equitable GP practices self-selected into the scheme in 1991; evidence of an inequity-reducing treatment effect as well as a selfselection effect are found in 1992 and 1993; the self-selection process reduces and no evidence of a treatment effect is present thereafter.
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“…(Shorrocks, 1998;Lambert, 1997 and1998) Axioms 1 to 4 are widely accepted in the inequality literature and so we will not comment on these further (Lambert, 2001). Conversely, the focus axiom is chiefly used in the literature on poverty and has important implications for the inequity measure that we obtain.…”
This is the submitted version of the paper.This version of the publication may differ from the final published version. Abstract: This paper proposes a new approach to the measurement of inequality and inequity in the delivery of health care based on contributions from the literature on poverty and deprivation. This approach has some appealing characteristics: 1) inequity is additively decomposable by population subgroups; 2) the approach does not rely on socio-economic ranks; 3) it provides a graphical representation of the distribution of inequity; 4) it offers a range of indices consistent with dominance. An empirical application is provided investigating the effect of the GP fundholding reform on equity in English NHS. The results show that the most equitable GP practices self-selected into the scheme in 1991; evidence of an inequity-reducing treatment effect as well as a selfselection effect are found in 1992 and 1993; the self-selection process reduces and no evidence of a treatment effect is present thereafter.
Permanent repository link
“…Lambert (2001) refers to the expression −x U′′(x) U′(x) , with x any type of outcome, as an index of inequality aversion and, hence, we can interpret the term −θh 1 (ĉ 1 )…”
Traditionally aversion to health inequality is modelled through a concave utility function over health outcomes. Bleichrodt et al. (2004) have suggested a "dual" approach based on the introduction of explicit equity weights. The purpose of this paper is to analyze how priorities in health care are determined in the framework of these two models. It turns out that policy implications are highly sensitive to the choice of the model that will represent aversion to health inequality.
“…This in turn provides the intuition behind the Gini coefficient which is equal to twice the area between the straight 45 degree line plot and the Lorenz curve L x . Formally the Gini coefficient can be written as: 6 A more detailed discussion of what follows can be found in Lambert (1993). For an application of the use of Lorenz curves in studies of regional income convergence in the U.S see Bishop et al (1992Bishop et al ( , 1994.…”
Section: Measuring the Progressivity Of Income Taxmentioning
confidence: 99%
“…Rescaling the residuals as we have ensures that the differences estimated Gini for the raw and residualised GDP series only reflects differences in the average absolute deviations of both series. This seems a reasonable way to proceed though we should note that different (relative to the initial distribution) according to any individualistic, symmetric, additively separable and inequality averse social welfare function (by definition Lambert (1993) page 152 for a discussion in the context of taxes)). 16 However we can show further that having -convergence (progressive income growth) is welfare improving, not only in relation to the initial income distribution, but also relative to an equal-yield proportional income growth counterfactual.…”
Section: -Convergence Welfare and Average Rate Progressivitymentioning
In this paper we develop a coherent framework that integrates both traditional measures of -convergence and -convergence within a study of cross-country income dynamics. To do this we exploit the close links that exist between studies of income mobility and studies analysing the progressivity of the tax system. We also develop a welfare interpretation for the concept of -convergence, which distinguishes it from the more general form of -convergence and which also suggests that the -process may be worthy of independent study. We illustrate our approach using data for the period 1960-2000.
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