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Efficient Estimation of Semiparametric Equivalence Scales with Evidence from South Africa

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Author Info
Yatchew, Adonis
Sun, Yiguo
Deri, Catherine

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Abstract

We propose semiparametric procedures for estimation and testing of base-independent equivalence scales. The partial linear index specification permits simultaneous estimation across multiple household types and multiple goods and also the incorporation of continuous and discrete household attributes. Furthermore, asymptotic properties of estimated equivalence scales and tests of base independence are readily obtained. The efficiency gains from the proposed models and estimators are particularly helpful for developing country data where there is often much greater variation in household size and composition. We apply the techniques to South African data and find the results to be broadly consistent with base independence.

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Publisher Info
Article provided by American Statistical Association in its journal Journal of Business and Economic Statistics.

Volume (Year): 21 (2003)
Issue (Month): 2 (April)
Pages: 247-57
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Handle: RePEc:bes:jnlbes:v:21:y:2003:i:2:p:247-57

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  1. Steven F. Koch & Gauthier Tshiswaka-Kashalala, 2008. "Tobacco Substitution and the Poor," Working Papers 200832, University of Pretoria, Department of Economics. [Downloadable!]
  2. Stengos, T. & Sun, Y. & Wang, D., 2003. "Estimates of Semiparametric Equivalence Scales," Working Papers 2003-7, University of Guelph, Department of Economics. [Downloadable!]
    Other versions:
  3. Thanasis Stengos & Dianqin Wang, 2007. "Testing for Shape Invariance of Semiparametric Equivalence Scales," Economics Bulletin, Economics Bulletin, vol. 4(21), pages 1-11. [Downloadable!]
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This page was last updated on 2009-11-22.


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