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Mending the family tree a reconciliation of the linearization and levels schools of AGE modelling

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  • Hertel, Thomas W.
  • Mark Horridge, J.
  • Pearson, K. R.

Abstract

This paper offers a critical comparison between the North American levels school of applied general equilibrium modelling and the Norwegian/Australian school of linearizers. The paper develops both the levels and linearized representations of a neoclassical, multiregion trade model. This development is used to focus attention on similarities and differences between the two schools. The main conclusions are as follows. i) The method used to solve applied general equilibrium models is not really the issue - the solution method used has become short-hand for a host of cultural differences reflecting the orientation of the two groups. ii) Levels or linearized versions of models are equally valid representations. Either representation is a natural starting point for obtaining accurate solutions of the model. iii) Linearized versions ofter aid transparency in explaining the mechanisms at work in a model. iv) In view of recent developments with the GEMPACK software suite, it is no longer necessary for linearizers to settle for solutions containing linearization errors. v) The two schools have a great deal in common and both would benefit from greater cooperation.

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Bibliographic Info

Article provided by Elsevier in its journal Economic Modelling.

Volume (Year): 9 (1992)
Issue (Month): 4 (October)
Pages: 385-407

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Handle: RePEc:eee:ecmode:v:9:y:1992:i:4:p:385-407

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Web page: http://www.elsevier.com/locate/inca/30411

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  1. Hanoch, Giora, 1975. "Production and Demand Models with Direct or Indirect Implicit Additivity," Econometrica, Econometric Society, vol. 43(3), pages 395-419, May.
  2. Dawkins, Christina & Srinivasan, T.N. & Whalley, John, 2001. "Calibration," Handbook of Econometrics, in: J.J. Heckman & E.E. Leamer (ed.), Handbook of Econometrics, edition 1, volume 5, chapter 58, pages 3653-3703 Elsevier.
  3. Wigle, Randall M, 1991. "The Pagan-Shannon Approximation: Unconditional Systematic Sensitivity in Minutes," Empirical Economics, Springer, vol. 16(1), pages 35-49.
  4. K.R. Pearson, 1991. "Solving Nonlinear Economic Models Accurately Via a Linear Representation," Centre of Policy Studies/IMPACT Centre Working Papers ip-55, Victoria University, Centre of Policy Studies/IMPACT Centre.
  5. Pearson, K. R., 1988. "Automating the computation of solutions of large economic models," Economic Modelling, Elsevier, vol. 5(4), pages 385-395, October.
  6. Shoven,John B. & Whalley,John, 1992. "Applying General Equilibrium," Cambridge Books, Cambridge University Press, number 9780521266550.
  7. Harrison, Glenn W. & Jones, Richard & Kimbell, Larry J. & Wigle, Randal, 1993. "How robust is applied general equilibrium analysis?," Journal of Policy Modeling, Elsevier, vol. 15(1), pages 99-115, February.
  8. Brown, Drusilla K., 1987. "Tariffs, the terms of trade, and national product differentiation," Journal of Policy Modeling, Elsevier, vol. 9(3), pages 503-526.
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Cited by:
  1. W. Jill Harrison & K.R. Pearson & Alan A. Powell & E. John Small, 1993. "Solving Applied General Equilibrium Models Represented as a Mixture of Linearized and Levels Equation," Centre of Policy Studies/IMPACT Centre Working Papers ip-61, Victoria University, Centre of Policy Studies/IMPACT Centre.
  2. George Verikios, 2006. "Understanding the World Wool Market: Trade, Productivity and Grower Incomes. Part 3: A Model of the World Wool Market," Economics Discussion / Working Papers 06-21, The University of Western Australia, Department of Economics.
  3. Mustapha Sadni Jallab & Lahsen Abdelkmalki & René Sandretto, 2007. "The Free Trade Agreement Between the United States and Morocco. The Importance of a Gradual and Assymetric Agreement," Post-Print halshs-00359098, HAL.
  4. Gomes Pereira, Matheus Wemerson & Teixeira, Erly Cardoso & Raszap-Skorbiansky, Sharon, 2010. "Impacts of the Doha Round on Brazilian, Chinese and Indian agribusiness," China Economic Review, Elsevier, vol. 21(2), pages 256-271, June.
  5. Anderson, Kym & Norman, David & Wittwer, Glyn, 2002. "Globalization of the Worlds Wine Markets," CEPR Discussion Papers 3169, C.E.P.R. Discussion Papers.
  6. Lanclos, D. Kent & Hertel, Thomas W. & Devadoss, Stephen, 1996. "Assessing the effects of tariff reform on U.S. food manufacturing industries: the role of imperfect competition and intermediate inputs," Agricultural Economics, Blackwell, vol. 14(3), pages 201-212, August.
  7. W. Jill Harrison & K.R. Pearson, 1994. "Computing Solutions for Large General Equilibrium Models Using GEMPACK," Centre of Policy Studies/IMPACT Centre Working Papers ip-64, Victoria University, Centre of Policy Studies/IMPACT Centre.
  8. George Verikios, 2006. "Understanding the World Wool Market: Trade, Productivity and Grower Incomes. Part 2: The Toolbox," Economics Discussion / Working Papers 06-20, The University of Western Australia, Department of Economics.
  9. W. Jill Harrison & K.R. Pearson, 1994. "Multiregional and Intertemporal AGE Modelling via GEMPACK," Centre of Policy Studies/IMPACT Centre Working Papers ip-66, Victoria University, Centre of Policy Studies/IMPACT Centre.
  10. Antonio Gómez Gómez-Plana, . "Simulación De Políticas Económicas: Los Modelos De Equilibrio General Aplicado," Working Papers 35-02 Classification-JEL , Instituto de Estudios Fiscales.
  11. Joaquim Bento de Souza Ferreira Filho & Carliton Vieira dos Santos & Sandra Maria do Prado Lima, 2007. "Tax Reform, Income Distribution and Poverty in Brazil: an Applied General Equilibrium Analysis," Working Papers MPIA 2007-26, PEP-MPIA.
  12. K.R. Pearson, 1991. "Solving Nonlinear Economic Models Accurately Via a Linear Representation," Centre of Policy Studies/IMPACT Centre Working Papers ip-55, Victoria University, Centre of Policy Studies/IMPACT Centre.
  13. Horridge, Mark & Meeraus, Alex & Pearson, Ken & Rutherford, Thomas F., 2013. "Solution Software for Computable General Equilibrium Modeling," Handbook of Computable General Equilibrium Modeling, Elsevier.
  14. M. Kohlhaas & K.R. Pearson, 2002. "Introduction to GEMPACK for GAMS Users," Centre of Policy Studies/IMPACT Centre Working Papers ip-79, Victoria University, Centre of Policy Studies/IMPACT Centre.
  15. Durand-Morat, Alvaro & Wailes, Eric J., 2010. "Riceflow: a Multi-region, Multi-product, Spatial Partial Equilibrium Model of the World Rice Economy," Staff Papers 92010, University of Arkansas, Department of Agricultural Economics and Agribusiness.

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