Poverty, Income Distribution and CGE Modeling: Does the Functional Form of Distribution Matter?
In this paper, we provide an overview of approaches used to model income distribution and poverty in CGE models. CGE models have started to use income distribution functional forms such as the lognormal, Pareto, beta distribution and Kernel non-parametric methods to apply GFT poverty indices. None of the authors of these papers have gone into much detail to justify the use of one method or functional form over the other, within the context of this type of work. Extensive literature exists on the choice of functional forms to estimate income distribution; however it has not been utilized in the CGE context. Given the fact that the desegregation of groups of households can be important in CGE analysis and the fact that the impact on income of policy simulations are often small in CGE models, we investigate the importance of othe choice of the functional form used to estimate the income distribution of groups of households. We compare six functional forms with parametric estimation and on a non-parametric method. Results show that no single form is more appropriate in all cases or groups of households. The characteristics of samples and subgroups play an important role and the choice shoudl be guided by the best fitting distribution.
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- Bourguignon, Francois & De Melo, Jaime & Suwa, Akiko, 1991. "Modeling the effects of adjustment programs on income distribution," World Development, Elsevier, vol. 19(11), pages 1527-1544, November.
- John Cockburn, 2002.
"Trade Liberalisation and Poverty in Nepal: A Computable General Equilibrium Micro Simulation Analysis,"
CSAE Working Paper Series
2002-11, Centre for the Study of African Economies, University of Oxford.
- John Cockburn, 2004. "Trade Liberalisation and Poverty in Nepal A Computable General Equilibrium Micro Simulation Analysis," Development and Comp Systems 0409012, EconWPA.
- McDonald, James B, 1984. "Some Generalized Functions for the Size Distribution of Income," Econometrica, Econometric Society, vol. 52(3), pages 647-663, May.
- Foster, James & Greer, Joel & Thorbecke, Erik, 1984. "A Class of Decomposable Poverty Measures," Econometrica, Econometric Society, vol. 52(3), pages 761-766, May.
- Majumder, Amita & Chakravarty, Satya Ranjan, 1990. "Distribution of Personal Income: Development of a New Model and Its Application to U.S. Income Data," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 5(2), pages 189-196, April-Jun.
- Chia, Ngee-Choon & Wahba, Sadek & Whalley, John, 1994. "Poverty-Reducing Targeting Programmes: A General Equilibrium Approach," Journal of African Economies, Centre for the Study of African Economies (CSAE), vol. 3(2), pages 309-338, October.
- Abdelkhalek, T. & Chaoubi, A., 2000. "Croissance economique et pauvrete au Maroc: une analyse des distributions des depenses de consommation," Equipe MIMAP - Maroc c2, Institut National de statistique et d'economie appliquee (I.N.S.E.A.).
- Michael B. Gordy, 1998. "A generalization of generalized beta distributions," Finance and Economics Discussion Series 1998-18, Board of Governors of the Federal Reserve System (U.S.).
- Morrisson, Christian, 1991. "Adjustment, incomes and poverty in Morocco," World Development, Elsevier, vol. 19(11), pages 1633-1651, November.
- McDonald, James B. & Xu, Yexiao J., 1995. "A generalization of the beta distribution with applications," Journal of Econometrics, Elsevier, vol. 69(2), pages 427-428, October.
- McDonald, James B. & Xu, Yexiao J., 1995. "A generalization of the beta distribution with applications," Journal of Econometrics, Elsevier, vol. 66(1-2), pages 133-152.
- McDonald, James B & Mantrala, Anand, 1995. "The Distribution of Personal Income: Revisited," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 10(2), pages 201-204, April-Jun.
- Singh, S K & Maddala, G S, 1976. "A Function for Size Distribution of Incomes," Econometrica, Econometric Society, vol. 44(5), pages 963-970, September.
- McDonald, James B & Ransom, Michael R, 1979. "Functional Forms, Estimation Techniques and the Distribution of Income," Econometrica, Econometric Society, vol. 47(6), pages 1513-1525, November.
- Decaluwe, B. & Patry, A. & Savard, L. & Thorbecke, E., 1999. "Poverty Analysis Within a General Equilibrium Framework," Cahiers de recherche 9909, Université Laval - Département d'économique.
- Decaluwe, B. & Patry, A. & Savard, L. & Thorbecke, E., 1999. "Poverty Analysis Within a General Equilibrium Framework," Papers 9909, Laval - Recherche en Politique Economique.
- Sahota, Gian Singh, 1978. "Theories of Personal Income Distribution: A Survey," Journal of Economic Literature, American Economic Association, vol. 16(1), pages 1-55, March.
- Thorbecke, Erik, 1991. "Adjustment, growth and income distribution in Indonesia," World Development, Elsevier, vol. 19(11), pages 1595-1614, November. Full references (including those not matched with items on IDEAS)