Models and Modeling Tools

Models are listed by family, time dimension, and spatial coverage when applicable. Click a model's title to view the latest developments.

Last Updated: 21 Jan, 2016
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Spatial Extent: global
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The spatial equilibrium model is a multi-region partial equilibrium model which links producers and consumers from different locations. It allows economists to examine the global economic and trade consequences of diverse trade policies by determining their effects on market, trade and welfare variables. As an example, it evaluates the impact of such policies on supply and demand, producer and consumer prices, volume and direction of trade, consumer and producer surpluses, as well as on world welfare.

Last Updated: 21 Jul, 2015
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Spatial Extent: global
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As discussed in Laborde, Martin, and van der Mensbrugghe (2011), using an optimal tariff aggregator to perform trade policy simulations is critical to improving quantitative assessments of trade reform.

Last Updated: 25 Jan, 2013
Family: multi-country computable general equilibrium model
Spatial Extent: global
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MIRAGRODEP is a dynamic multi-country, multi-sector general equilibrium model. The dynamics is recursive and the model is calibrated on the GTAP database. MIRAGRODEP is a new version of the MIRAGE model of the world economy, whose GAMS code has been simplified and presented in a more compact and user-friendly way.

Last Updated: 20 Feb, 2013
Family: multi-market partial equilibrium model
Spatial Extent: global
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This is a partial equilibrium model for trade policy analysis (PE-TRADE) which is set up in Excel. The PE-TRADE model in Excel shows multiple examples of trade policy analyses with increasing details in each worksheet. In these examples, the focus is on the response of import demand to changes in trade policy and other tax policy instruments.

Last Updated: 26 Apr, 2013
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Spatial Extent: global
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This module on gravity equations is composed of a literature review summarizing the key points and references you have to know when interested to estimate a gravity equation and a set of illustrative STATA program used to perform such estimations.

Last Updated: 31 Oct, 2012
Family: multi-market partial equilibrium model
Spatial Extent: global
Time:

Different from many single-commodity partial equilibrium models, the Export Restrictions And import Tariffs Overall impacts (ERATO) model illustrates how a multi-market model can be used to analyze trade policy options in a context of a multi-product value chain. It can also be used to study different productivity shock or tax changes in a sectoral value chain. The ERATO model is a member of the MUlti Sectoral partial Equilibrium models (MUSE) developed for the AGRODEP Consortium.

Last Updated: 10 Apr, 2010
Family: simulation model
Spatial Extent: global
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The TASTE program has been designed to allow a large number of users to analyze existing trade policies and perform tariff scenarios. It is based on the MAcMap-HS6 database (version 2, baseyear 2004). It addresses several needs in terms of trade policy analysis. Among them:

Last Updated: 1 Nov, 2012
Family: multi-market partial equilibrium model
Spatial Extent: global
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DREAM, or Dynamic Research EvaluAtion for Management, is a menu-driven software package for evaluating the economic impacts of agricultural research and development (R&D). Users can simulate a range of market, technology adoption, research spillover, and trade policy scenarios based on a flexible, multi-market, partial equilibrium model.

Last Updated: 7 Jul, 2003
Family: multi-country computable general equilibrium model
Spatial Extent: global
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The standard GTAP Model is a multiregion, multisector, computable general equilibrium model with perfect competition and constant returns to scale. Innovative aspects of this model include: (i) the treatment of private household preferences using the non-homothetic CDE functional form and (ii) the explicit treatment of international trade and transport margins. Bilateral trade is handled via the Armington assumption. A global banking sector intermediates between global savings and consumption.

Last Updated: 1 Jan, 2007
Family: multi-country computable general equilibrium model
Spatial Extent: global
Time:

MIRAGE is a multisector, multiregion CGE model that operates in a sequential dynamic recursive set-up.