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Un système de demandes AIDS dans un contexte EGC microsimulation pour l'analyse de pauvreté et des inégalités

  • Luc Savard

    ()

    (Professeur, GREDI, Département d’économique, Faculté d’administration, Université de Sherbrooke, Sherbrooke, Québec, Canada)

Dans ce travail nous explorons la contribution en terme d’introduire de l’hétérogénéité inter ménages d’intégrer une fonction de demande flexible dans un cadre d’analyse de modélisation en équilibre général calculable de type micro-simulation multi-ménages intégré (EGC-MMI). Afin de pouvoir résoudre le modèle nous proposer d’utiliser des éléments de l’approche EGC-TD/BU proposé par Savard (2003). Nous retenons de travailler avec le système de demande presque parfait (AIDS) qui présente des propriétés intéressantes en termes de spécificités des comportements pour chacun des ménages. Toutefois, cette fonction a aussi des propriétés (non quasi-concavité globale) peut rendre son utilisation dans le contexte de modélisation en EGC difficile. Afin de montrer la contribution d’introduire le système de demande AIDS, nous comparons les résultats avec un modèle à agent représentatif ainsi qu’avec un modèle micro-simulation EGC-TD/BU utilisant un système de demande AIDS. Les résultats montre que la mesure de changement de bien-être qui correspond au système de demande AIDS est très sensible aux changements de revenu et de prix généré par le modèle. Par conséquent, les variations des indices de pauvreté et d’inégalité sont beaucoup plus fortes que celle observé dans un modèle à agent représentatif et avec un modèle utilisant le système de demande linéaire.

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File URL: http://gredi.recherche.usherbrooke.ca/wpapers/04_10_ls.pdf
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Paper provided by Departement d'Economique de la Faculte d'administration à l'Universite de Sherbrooke in its series Cahiers de recherche with number 04-10.

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Length: 31 pages
Date of creation: 2004
Date of revision:
Handle: RePEc:shr:wpaper:04-10
Contact details of provider: Postal: Sherbrooke, Québec, J1K 2R1
Phone: (819) 821-7233
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  1. Foster, James & Greer, Joel & Thorbecke, Erik, 1984. "A Class of Decomposable Poverty Measures," Econometrica, Econometric Society, vol. 52(3), pages 761-66, May.
  2. André Decoster & Frederic Vermeulen, 1998. "Evaluation of the Empirical Performance of Two-Stage Budgeting AIDS, QUAIDS and Rotterdam Models Based on Weak Separability," Center for Economic Studies - Discussion papers ces9807, Katholieke Universiteit Leuven, Centrum voor Economische Studiën.
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  6. Deaton, Angus S & Muellbauer, John, 1980. "An Almost Ideal Demand System," American Economic Review, American Economic Association, vol. 70(3), pages 312-26, June.
  7. Burfisher, Mary E. & Robinson, Sherman & Thierfelder, Karen, 2000. "Small countries and the case for regionalism vs. multilateralism," TMD discussion papers 54, International Food Policy Research Institute (IFPRI).
  8. John Cockburn, 2004. "Trade Liberalisation and Poverty in Nepal A Computable General Equilibrium Micro Simulation Analysis," Development and Comp Systems 0409012, EconWPA.
  9. Pashardes, Panos, 1993. "Bias in Estimating the Almost Ideal Demand System with the Stone Index Approximation," Economic Journal, Royal Economic Society, vol. 103(419), pages 908-15, July.
  10. Decoster, Andre & Schokkaert, Erik, 1990. "Tax reform results with different demand systems," Journal of Public Economics, Elsevier, vol. 41(3), pages 277-296, April.
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