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Assessing the adjustment implications of trade policy changes using TRIST (tariff reform impact simulation tool)

  • Brenton, Paul
  • Saborowski, Christian
  • Staritz, Cornelia
  • von Uexkull, Erik

TRIST is a simple, easy to use tool to assess the adjustment implications of trade reform. It improves on existing tools. First, it is an improvement in terms of accuracy because projections are based on revenues actually collected at the tariff line level rather than simply applying statutory rates. Second, it is transparent and open; runs in Excel, with formulas and calculation steps visible to the user; and is open-source and users are free to change, extend, or improve according to their needs. Third, TRIST has greater policy relevance because it projects the impact of tariff reform on total fiscal revenue (including VAT and excise) and results are broken down to the product level so that sensitive products or sectors can be identified. And fourth, the tool is flexible and can incorporate tariff liberalization scenarios involving any group of trading partners and any schedules of products. This paper describes the TRIST tool and provides a range of examples that demonstrate the insights that the tool can provide to policy makers on the adjustment impacts of reducing tariffs.

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Paper provided by The World Bank in its series Policy Research Working Paper Series with number 5045.

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Date of creation: 01 Sep 2009
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Handle: RePEc:wbk:wbrwps:5045
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  1. Hiau Looi Kee & Alessandro Nicita & Marcelo Olarreaga, 2008. "Import Demand Elasticities and Trade Distortions," The Review of Economics and Statistics, MIT Press, vol. 90(4), pages 666-682, November.
  2. repec:cup:cbooks:9780521874434 is not listed on IDEAS
  3. Sadni Jallab, Mustapha & Karingi, Stephen & Oulmane, Nassim & Perez, Romain & Lang, RĂ©mi & Ben Hammouda, Hakim, 2005. "Economic and Welfare Impacts of the EU-Africa Economic Partnership Agreements," MPRA Paper 12875, University Library of Munich, Germany.
  4. Padamja Khandelwal, 2004. "Comesa and Sadc; Prospects and Challenges for Regional Trade Integration," IMF Working Papers 04/227, International Monetary Fund.
  5. World Bank, 2006. "Mauritius : From Preferences to Global Competitiveness, Report of the Aid for Trade Mission," World Bank Other Operational Studies 8171, The World Bank.
  6. Chris Milner & Oliver Morrissey & Andrew McKay, 2005. "Some Simple Analytics of the Trade and Welfare Effects of Economic Partnership Agreements," Journal of African Economies, Centre for the Study of African Economies (CSAE), vol. 14(3), pages 327-358, September.
  7. Andriamananjara, Soamiely & Brenton, Paul & von Uexkull, Jan Erik & Walkenhorst, Peter, 2009. "Assessing the economic impacts of an economic partnership agreement on Nigeria," Policy Research Working Paper Series 4920, The World Bank.
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