IDEAS home Printed from
MyIDEAS: Login to save this paper or follow this series

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

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

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 the fact that different aggregators are needed for expenditure on imported goods and for 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.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL:
Download Restriction: no

Paper provided by The World Bank in its series Policy Research Working Paper Series with number 5665.

in new window

Date of creation: 01 May 2011
Date of revision:
Handle: RePEc:wbk:wbrwps:5665
Contact details of provider: Postal: 1818 H Street, N.W., Washington, DC 20433
Phone: (202) 477-1234
Web page:

More information through EDIRC

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

as in new window
  1. Oral Capps Jr. & Sergio Colin‐Castillo & Manuel A. Hernandez, 2013. "Do Marketing Margins Change with Food Scares? Examining the Effects of Food Recalls and Disease Outbreaks in the U.S. Red Meat Industry," Agribusiness, John Wiley & Sons, Ltd., vol. 29(4), pages 426-454, 09.
  2. Nakasone, Eduardo, 2011. "The impact of land titling on labor allocation: Evidence from rural Peru," IFPRI discussion papers 1111, International Food Policy Research Institute (IFPRI).
  3. Zhang, Xiaobo & Hu, Dinghuan, 2014. "Overcoming Successive Bottlenecks: The Evolution of a Potato Cluster in China," World Development, Elsevier, vol. 63(C), pages 102-112.
  4. 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).
  5. 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).
  6. 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.
  7. Spielman, David J. & Kolady, Deepthi E. & Cavalieri, Anthony & Rao, N. Chandrasekhara, 2014. "The seed and agricultural biotechnology industries in India: An analysis of industry structure, competition, and policy options," Food Policy, Elsevier, vol. 45(C), pages 88-100.
  8. Futoshi Yamauchi, 2012. "Prenatal Seasonality, Child Growth, and Schooling Investments: Evidence from Rural Indonesia," Journal of Development Studies, Taylor & Francis Journals, vol. 48(9), pages 1323-1341, September.
  9. 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).
  10. 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).
  11. 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).
  12. Reardon, Thomas & Minten, Bart, 2011. "The quiet revolution in India's food supply chains:," IFPRI discussion papers 1115, International Food Policy Research Institute (IFPRI).
  13. 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).
  14. 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).
  15. Alexander E. Saak, 2012. "Collective Reputation, Social Norms, and Participation," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 94(3), pages 763-785.
  16. 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.
  17. 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).
  18. 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).
  19. 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).
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:wbk:wbrwps:5665. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Roula I. Yazigi)

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.