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Estimando Engel elasticidades a partir de curvas de Lorenz y de concentración. Ejemplo de la tabla 8 de Ernest Engel

Authors: Basulto Santos, Jesús; Camúñez Ruiz, José Antonio;

Estimando Engel elasticidades a partir de curvas de Lorenz y de concentración. Ejemplo de la tabla 8 de Ernest Engel

Abstract

Desde el trabajo pionero de Engel en 1857, la estimación de las curvas de Engel y el cálculo de sus elasticidades ha ocupado una posición central en todos los estudios sobre los presupuestos de las familias. Una curva de Engel relaciona los gastos sobre un bien particular de un hogar sobre los gastos totales del hogar. Mientras que la elasticidad de Engel sobre un bien mide el porcentaje de cambio en el gasto realizado sobre dicho bien dividido por el porcentaje de cambio del gasto total del hogar. La aproximación tradicional para estimar una curva de Engel consiste en seleccionar una forma funcional apropiada para cada bien, estimar sus parámetros y, finalmente, obtener la elasticidad a nivel de cada gasto total. Una alternativa es usar curvas de concentración que permiten calcular las elasticidades para cada valor de los gastos totales y sus correspondientes errores de estimación. En plan de este trabajo es ilustrar el método de las curvas de concentración a partir de los datos de renta anual y gasto en alimentos, medidos en francos, de la Tabla 8 que Engel uso en su trabajo 1857.

The traditional parametric approach of estimating Engel is to select an appropriate functional form for each good, estimate it and use the estimated parameters to obtain the elasticity at any level of total expenditure. An alternative to the direct estimation approach is to infer total expenditure elasticity from concentration curves and the calculation of standard errors evaluated at different levels of total expenditure.

Country
Spain
Related Organizations
Keywords

Elasticidades, Curvas de Concentración, Concentration Curves, Elasticities, Curvas de Engel, Engel Curves

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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