The importance of individual heterogeneity in the composition of measures of socioeconomic inequality in health: an approach based on quantile regression
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Mostrar el registro completo del ítemGrupo de investigación
Grupo de I+D en Economía, Políticas Públicas y SaludÁrea de conocimiento
Economía AplicadaPatrocinadores
This paper derives from the project “Economic determinants of the distribution of health and health care in Europe” (known as the ECuity II Project), which is funded in part by the European Community’s Biomed II programme (contract BMH4-CT98-3352). We are grateful to the EC and to the Spanish Ministry of Education (grant PR2001-0295) and the Spanish DGES (project PB98-1058-C03-01) for financial support and to Statistics Canada for access to the NPHS data.Fecha de publicación
2002-06Editorial
Universidad Pompeu Fabra. Departamento de Economía y EmpresaCita bibliográfica
JONES, Andrew, LÓPEZ NICOLÁS, Ángel. The importance of individual heterogeneity in the gecomposition of measures of socioeconomic inequality in health: an approach based on quantile regression. Working Papers, 626: 26. Junio 2002Palabras clave
Desigualdades en saludHeterogeneidad incumplida
Regresión cuantil
Health inequalities
Unobserved heterogeneity
Quantile regression
Resumen
This paper shows how recently developed regression-based methods for the
decomposition of health inequality can be extended to incorporate individual
heterogeneity in the responses of health to the explanatory variables. We illustrate our
method with an application to the Canadian NPHS of 1994. Our strategy for the
estimation of heterogeneous responses is based on the quantile regression model. The
results suggest that there is an important degree of heterogeneity in the association of
health to explanatory variables which, in turn, accounts for a substantial percentage of
inequality in observed health. A particularly interesting finding is that the marginal
response of health to income is zero for healthy individuals but positive and significant
for unhealthy individuals. The heterogeneity in the income response reduces both
overall health inequality and income related health inequality.
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