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Measuring the impacts of global trade reform with optimal aggregators of distortions:

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  • Laborde Debucquet, David
  • Martin, Will
  • van der Mensbrugghe, Dominique

Abstract

Traditional weighted-average measures of trade distortions are widely used in analyzing global and regional reforms, despite well-known deficiencies. This paper develops and applies optimal aggregators for the real-world case of multiple countries and commodities with much more detailed information on trade than on production and consumption. The approach reflects that different aggregators are needed for expenditure on imported goods and tariff revenues, and allows for incorporation of both intensive and extensive margins of adjustment to reform. Applications confirm that the technique is straightforward enough for widespread use, and point to close to a doubling of the welfare gains at the intensive margin when using the highest possible level of international commodity disaggregation, with larger gains in developing regions than in the industrial countries. The measured income gains increase along the entire path of liberalization, with slightly larger increases in the earlier stages, where the gaps between the responses of the expenditure and tariff revenue aggregators are largest. Sensitivity analysis suggests that, for global trade reform, the ease of substitution between tariff lines is much more important than that between varieties from different countries.

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Bibliographic Info

Paper provided by International Food Policy Research Institute (IFPRI) in its series IFPRI discussion papers with number 1123.

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Date of creation: 2011
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Handle: RePEc:fpr:ifprid:1123

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Keywords: aggregation; distortions; economic welfare measurement; Trade reform; trade restrictiveness;

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References

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  1. Reardon, Thomas & Minten, Bart, 2011. "The quiet revolution in India's food supply chains:," IFPRI discussion papers 1115, International Food Policy Research Institute (IFPRI).
  2. Douillet, Mathilde, 2011. "Which trade integration scheme can best help Sub-Saharan Africa develop and export more processed agricultural goods?:," IFPRI discussion papers 1119, International Food Policy Research Institute (IFPRI).
  3. Hernandez, Manuel A. & Ibarra, Raul & Trupkin, Danilo R., . "How far do shocks move across borders? Examining volatility transmission in major agricultural futures markets," 2012 Conference, August 18-24, 2012, Foz do Iguacu, Brazil 124979, International Association of Agricultural Economists.
  4. Yamauchi, Futoshi & Liu, Yanyan, 2011. "Impacts of an early education intervention on students' learning achievement: Evidence from the Philippines," IFPRI discussion papers 1121, International Food Policy Research Institute (IFPRI).
  5. Saak, Alexander, 2011. "Collective reputation, social norms, and participation:," IFPRI discussion papers 1107, International Food Policy Research Institute (IFPRI).
  6. Hernandez, Manuel & Colin-Castillo, Sergio & Capps, Oral, Jr., 2011. "Do marketing margins change with food scares?: Examining the effects of food recalls and disease outbreaks in the us red meat industry," IFPRI discussion papers 1104, International Food Policy Research Institute (IFPRI).
  7. Bernard, Tanguy & Dercon, Stefan & Taffesse, Alemayehu Seyoum, 2011. "Beyond fatalism: An empirical exploration of self-efficacy and aspirations failure in Ethiopia," IFPRI discussion papers 1101, International Food Policy Research Institute (IFPRI).
  8. Kim, Sunny S. & Habicht, Jean-Pierre & Menon, Purnima & Stoltzfus, Rebecca J., 2011. "How do programs work to improve child nutrition?: Program impact pathways of three nongovernmental organization intervention projects in the Peruvian highlands," IFPRI discussion papers 1105, International Food Policy Research Institute (IFPRI).
  9. de Brauw, Alan & Gilligan, Daniel, 2011. "Using the regression discontinuity design with implicit partitions: The impacts of comunidades solidarias rurales on schooling in El Salvador," IFPRI discussion papers 1116, International Food Policy Research Institute (IFPRI).
  10. Wiebelt, Manfred & Pauw, Karl & Matovu, John Mary & Twimukye, Evarist & Benson, Todd, 2011. "Managing future oil revenue in Uganda for agricultural development and poverty reduction: A CGE analysis of challenges and options," IFPRI discussion papers 1122, International Food Policy Research Institute (IFPRI).
  11. Zambrano, Patricia & Maldonado, Jorge H. & Mendoza, Sandra L. & Ruiz, Lorena & Fonseca, Luz Amparo & Cardona, Iván, 2011. "Women cotton farmers: Their perceptions and experiences with transgenic varieties: A case study for Colombia," IFPRI discussion papers 1118, International Food Policy Research Institute (IFPRI).
  12. Quisumbing, Agnes R. & Kumar, Neha & Behrman, Julia A., 2011. "Do shocks affect men's and women's assets differently?: A review of literature and new evidence from Bangladesh and Uganda," IFPRI discussion papers 1113, International Food Policy Research Institute (IFPRI).
  13. Yamauchi, Futoshi & Liu, Yanyan, 2012. "Impacts of an early stage education intervention on students'learning achievement : evidence from the Philippines," Policy Research Working Paper Series 6246, The World Bank.
  14. Torero, Maximo & Viceisza, Angelino, 2011. "Potential collusion and trust: Evidence from a field experiment in Vietnam," IFPRI discussion papers 1100, International Food Policy Research Institute (IFPRI).
  15. Spielman, David J. & Kolady, Deepthi & Cavalieri, Anthony & Chandrasekhara Rao, N., 2011. "The seed and agricultural biotechnology industries in India: An analysis of industry structure, competition, and policy options," IFPRI discussion papers 1103, International Food Policy Research Institute (IFPRI).
  16. Yamauchi, Futoshi, 2011. "Prenatal seasonality, child growth, and schooling investments: Evidence from rural Indonesia," IFPRI discussion papers 1108, International Food Policy Research Institute (IFPRI).
  17. Chitiga, Margaret & Fofana, Ismael & Mabugu, Ramos, 2011. "A multiregion general equilibrium analysis of fiscal consolidation in South Africa:," IFPRI discussion papers 1110, International Food Policy Research Institute (IFPRI).
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Citations

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Cited by:
  1. Yu, Bingxin & Nin-Pratt, Alejandro & Funes, José & Gemessa, Sinafikeh Asrat, 2011. "Cereal production and technology adoption in Ethiopia:," IFPRI discussion papers 1131, International Food Policy Research Institute (IFPRI).
  2. Morley, Samuel & Piñeiro, Valeria & Robinson, Sherman, 2011. "External shocks and policy alternatives in small open economies: The case of El Salvador," IFPRI discussion papers 1134, International Food Policy Research Institute (IFPRI).
  3. Takeshima, Hiroyuki & Salau, Sheu, 2011. "How does ownership of farm implements affect investment in other farm implements when farmers' liquidity constraint is relaxed?: Insights from Nigeria," IFPRI discussion papers 1133, International Food Policy Research Institute (IFPRI).
  4. Glendenning, Claire J. & Asenso-Okyere, Kwadwo & Babu, Suresh C., 2011. "Evaluation of value-added agricultural advisory services: Case study of agriclinics in Southern India," IFPRI discussion papers 1125, International Food Policy Research Institute (IFPRI).
  5. Morley, Samuel & Piñeiro, Valeria & Robinson, Sherman, 2011. "A dynamic computable general equilibrium model with working capital for Honduras:," IFPRI discussion papers 1130, International Food Policy Research Institute (IFPRI).
  6. Charness, Gary & Viceisza, Angelino, 2012. "Comprehension and Risk Elicitation in the Field: Evidence from Rural Senegal," University of California at Santa Barbara, Economics Working Paper Series qt5512d150, Department of Economics, UC Santa Barbara.
  7. Anderson, Kym & Strutt, Anna, 2012. "Asia’s Growth, the Changing Geography of World Trade, and Food Security: Projections to 2030," CEPR Discussion Papers 8950, C.E.P.R. Discussion Papers.

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