Global Trade Analysis Project (GTAP)

The Global Trade Analysis Project (GTAP) is a global network of researchers and policy makers conducting quantitative analysis of international policy issues. GTAP is coordinated by the Center for Global Trade Analysis in Purdue University's Department of Agricultural Economics.

Current Highlights

GTAP in the News

New data reaffirms carbon benefits of biodiesel

The National Biodiesel Board reported on Wally Tyner (and his research team's) findings at workshop for alternative fuels workshop in Macon, Georgia

Biomss-based fuels present a tremendous opportunity to transition toward a more sustainable mix of renewable energy. This was a key theme of an alternative fuels workshop hosted today by the U.S. Department of Energy in Macon, Georgia. The workshop examined the sustainability of feedstocks like soybean oil, which can be used to make biodiesel or alternative jet fuel.

Wally Tyner, a professor of Agricultural Economics at Purdue University, presented his research team's latest findings today regarding the greenhouse gas (GHG) emissions of producing biodiesel from soybeans. Those findings confirm that soybean oil offers very good carbon reduction when used to displace fossil fuel. Tyner is supported by the James and Louis Ackerman endowment.

Read more

The Center is always interested to learn when GTAP-based analysis is recognized on a platform, such as the piece(s) above. If you have similar items you wish to share with the Center and broader GTAP community, please feel free to email them to Ginger Batta.

What do you hope to take away from the GTAP 101 Course and how will it apply to your work?

Jamie Macleod
Trade Economist
UNECA
Ethiopia

Trade is an invaluable tool for sustainable economic growth and addressing poverty. The research we undertake at the United Nations Economic Commission for Africa seeks to understand and answer vital trade policy questions for our Member States. The GTAP toolkit will help me contribute to this work in areas such as trade and climate change, mega-regional trade agreements, and regional integration.


Maxime Clemenceau
Senior Economist
Ernst & Young
United Arab Emirates

Working as a consultant for Government and Public Sector in the Middle East with a focus on public sector financial management, I am looking for a new and powerful tool to analyze and assess the impact of fiscal policy reforms on the global economy.

What do you hope to take away from the GTAP 101 Course and how will it apply to your work?

Ziad Ghaith
PhD Student
University of Saskatchewan
Canada

I plan to use GTAP to simulate the impact of Trans-Pacific Partnership agreement on Canada, and then to use the outcomes of this simulation as an input for Saskatchewan's regional CGE model.


Ronie Nguenkwe
PhD Student
University of Yaounde II- Soa
Cameroon

I hope this course will enable me to learn from other kind of data to use, how to fill a social accounting matrix, how to do simulations and interpret the results. After this course I hope to be able to do a micro or macro analysis using General Equilibrium Model until analysis results without too much difficulty.

What do you hope to take away from the GTAP 101 Course and how will it apply to your work?

Mohd. Abdus Salam
Government Service
Bangladesh Tariff Commission
Bangladesh

Presently I am working at Bangladesh Tariff Commission- an apex body of Bangladesh government to deal with the trade analysis (both domestic and international trade). I am entrusted to deal with the international trade of Bangladesh. After having this course I will be able to analyze international trade analysis more realistically.


Paula Cobas
PhD Student
University of the Republic of Uruguay
Uruguay

I would like to understand how Computable General Equilibrium Models work and how can I used them to asses the potential effects of environmental policies. Gaining this understanding would greatly contribute to my current research on environmental taxes in Uruguay. I hope this GTAP course serves as an effective way to enter into the world of CGE modelling.

What do you hope to take away from the GTAP 101 Course and how will it apply to your work?

Job Nmadu
Professor
The Federal University of Technology
Nigeria

I have a lot of programming skills in BASIC and GAMS which I hope to improve on when this course is concluded. Thereafter my I hope to be able to build a number of model scenarios based on the Nigerian economy.


Mahmoud Obeid
Senior Economic Researcher
Department of Economic Development
United Arab Emirates

Using GTAP Models as analytical tool in my research interests (Trade Policy, International Trade, Trade Agreements, and Macroeconomic Policies) will enhance the quality of my research. Estimation the effect of changes in one part of the economy upon the rest, and quantifying the impacts (shocks) of some Macroeconomic Policies are key elements in any CGE Models and that what I would like to learn through the participation in GTAP 101 Course.

What do you hope to take away from the GTAP 101 Course and how will it apply to your work?

Anusha Bansal
Associate Fellow
NCAER
India

I am currently working on FAO's COSIMO Model which is a partial equilibrium model to project the medium-term agricultural outlook for major commodities. I would like to apply GTAP Model and the general equilibrium framework to examine the impact of international shocks on domestic prices of agriculture commodities in India, especially given the low commodity price phase. Further, to find how domestic supply shocks in agricultural commodities, in turn impact the global price equilibrium, in particular for commodities like wheat and rice for which India is a major producer.
2017-1 GTAP 101 Course
"Introduction to Computable General Equilibrium Modeling"
April 10 - May 28, 2017


Cover image for Computable General Equilibrium Models
Dates/Deadlines (EST)
Applications September 12 - January 15
Acceptance Notifications February


Coursework based on:
Introduction to Computable General Equilibrium Models, 2e
by Mary E. Burfisher

The objective of GTAP 101 is to engage participants in an active, team-based process of learning about the GTAP CGE model and its use in applied economic policy analysis. The curriculum is geared to advanced undergraduates, graduates and professionals. Following the course, participants will be entry-level modelers and more informed consumers of CGE-based analyses.

New Working Paper

GTAP Working Paper

Extending the GTAP framework for public procurement analysis

by Aguiar, Angel, Caitlyn Carrico, Zekarias Hussein, Robert McDougall and Badri Narayanan

This paper extends the GTAP framework to aid in the analysis of changes to public procurement policies. In terms of data developments, government investment demand data is estimated for each of the 57 GTAP Commodities in the 140 regions of version 9. In addition, the origin of imports by end use (i.e., for firms, private consumption, government consumption, and investment) is determined following the recent literature. Another layer of valuation is also introduced, which captures the preferences towards domestic production. In terms of model extensions, there is a new nest in the production structure that allows for different procurement regimes, and the origin of imports by agents' end use is incorporated. We illustrate this framework by simulating the impact of a hypothetical reduction in the domestic preference in one of the newly introduced procurement regimes. Future work should focus on estimation of these domestic preference margins. Details

GTAP Working Paper No. 82

Global Trade Analysis: Modeling and Applications book cover

2016 AAEA - Publication of Enduring Quality Award

Global Trade Analysis: Modeling and Applications

Editor: Thomas W. Hertel

Contributors

  • Alan A. Powell
  • George B. Frisvold
  • Mark Gehlhar
  • Denice Gray
  • Kevin Hanslow
  • Karen M. Huff
  • Elena Ianchovichina
  • Betsey Kuhn
  • D. Kent Lanclos
  • Donald MacLaren
  • Will Martin
  • Bradley J. McDonald
  • Robert McDougall
  • Kenneth R. Pearson
  • Carlo Perroni
  • Padma V. Swaminathan
  • Marinos Tsigas
  • Rod Tyers
  • Randall Wigle
  • Yongzheng Yang
  • Koji Yanagishima
  • Linda M. Young
JGEA Cover Page

Journal of Global Economic Analysis

The Center for Global Trade Analysis is extremely pleased to introduce the inaugural issue of the Journal of Global Economic Analysis. This new journal (https://jgea.org/) provides an open access, peer-reviewed platform for publication and dissemination of innovations in modeling, data, software and teaching for applied general equilibrium analysis.

This first issue features two important new papers - and associated modeling software -- for implementing Melitz-style firm heterogeneity into AGE models. It also includes two papers on data base developments: the GTAP 9 Data Base and the GTAP-Power Data Base. Finally, it includes a paper documenting software for accessing, manipulating and presentation the World Bank's WDI data base.

Authors interested in submitting their work to the this publication are invited to read the Journal's Focus and Scope and Author Guidelines.

GTAP 9 globe icon GTAPAgg2 and GTAP9a, are now available!

GTAPAgg2 is an updated version of the GTAPAgg software package developed by Mark Horridge at the Centre of Policy Studies. Nearly all applications of the GTAP Model use an aggregation of the fully disaggregated GTAP Data Base. The software helps you prepare an aggregation scheme, then uses your scheme to prepare an aggregated data base for the GTAP Model. The GTAPAgg2 program has been redesigned to handle multiple GTAP Data Bases.

GTAP 9 has also has been updated to version 9a. Included in this release:

  • Domestic support data - Fixed a processing error which lead to significantly understated 2011 domestic support in EU27 member countries.
  • Capital stock data - Revised a very low capital stock level for Zimbabwe. Capital stock data were originally retrieved from the Penn World Tables, and in release 9a, selected countries in all three reference years have been revised using their regional average.

Price List | Order Form

2016 GTAP Preferential Trade Agreements Mini-Course
"Applied Policy Analysis: Mini-course on Preferential Trade Agreements"
October 24 - November 20, 2016


Cover image for Computable General Equilibrium Models
Dates/Deadlines (EST)
Applications May 2 - July 31
Acceptance Notifications August/September


Coursework based on:
Introduction to Computable General Equilibrium Models
by Mary E. Burfisher


GTAP PTA is a three-week, fully-online mini-course that is designed to provide professionals and students with hands-on, applied training in the analysis of preferential trade agreements (PTAs) using the GTAP computable general equilibrium model. The objectives of the GTAP PTA course are to provide students with an underpinning in the economic theory of tariffs and customs unions and regulatory policy analysis, and to help them develop their applied skills in database development, design of PTA experiments and analysis of model results.
GTAP 9 globe icon GTAP 9 Satellite Data and Utilities

The GTAP Center is pleased to announce that we have released four more satellite data and utilities, the following are free of charge and have been updated for use with the GTAP 9 Data Base.

GDyn Data Base: The GDyn Data Base facilitates development of baseline projections consistent with the GTAP 9 Data Base and for direct use with the GDyn Model.

GMig2 Data Base: The GMig2 Data Base contains global bilateral migration and remittances data consistent with the GTAP 9 Data Base.

GTAP-E Data Base: The GTAP-E Data Base provides carbon dioxide (CO2) emissions data distinguished by fuel and by user for each of the 140 countries/regions in the GTAP 9 Data Base.

GTAP Non-CO2 Emissions Data Base: The GTAP Non-CO2 Data Base complements the GTAP-E Data Base and provides information on other greenhouse gas (GHG) emissions such as Methane (CH4), Nitrous Oxide (N2O), Fluorinated gas (FGAS).

More Information | Order Form

Announcements

Organizations interested in posting an announcement below and on the GTAP-L Mailing List should email complete details, including contact information and closing dates, to contactgtap@purdue.edu.


GTAP Events Deadline
GTAP 101 Course - ApplicationJan 15, 2017

Network Events/Notices Deadline
VURM Multi-region modelling courseSep 30, 2016
CoPS - CGE Modeling Course - Middle EastOct 15, 2016
CoPS - Intro Practical GE Modelling CourseOct 15, 2016
GLOBE Model CourseFeb 1, 2017
STAGE Model CourseFeb 1, 2017

Job/Professional Opportunities Deadline
BEA - Assoc Director for Intl EconomicsOct 4, 2016
CoPS - Econ Modeller, Research FellowOct 24, 2016
IFPRI - Division DirectorNov 25, 2016

How GTAP Network members are using the GTAP 9 Data Base

Gouranga Das Gouranga Das
Professor, Hanyang University
South Korea

I have used the GTAP Data Base (along with other supplementary ones) for my research works since my PhD days. I am a regular subscriber of the GTAP Data Base and satellite programs as well. My area of research is related to globalization, trade, and economic development. For exploring multi-faceted issues related to global trade and development GTAP Data Base is excellent resource to use and the current version 9 is expanded to include more aspects. Over the years, the expanded versions of GTAP has benefited me for exploring issues such as technology transfer, skilled-unskilled wage gap, trade integration, and allied topics. Right now, I will use GTAP 9 for studying issues related to firm heterogeneity, mega trade deals which is my current research interests. Also, I published a book in 2014 which included contributions from reputed CGE scholars using GTAP and other CGE models like MONASH or USAGE. No doubt, GTAP 9 and other databases are useful research materials for state-of-the art areas.

John Ballingall John Ballingall
Deputy Chief Executive, New Zealand Institute of Economic Research
New Zealand

John and his colleagues at NZIER are using the GTAP 9 Data Base primarily for evaluating the potential effects of New Zealand's current and proposed Free Trade Agreements, such as TPP and the EU-NZ FTA. They are also linking the GTAP Model with their more detailed single-country CGE model of the New Zealand economy - ORANI-G-NZ - to assess the impacts of trade liberalisation at a more detailed industry and sectoral level.

Terry Roe Terry Roe
Professor, University of Minnesota
United States

The use of GTAP in my research program has been fitting these data to endogenous saving – multi sector growth models. Most recent applications deal with: economic growth and ground water dynamics in the Punjab of India, strengthening ecosystem and development linkages in the Republic of Kazakhstan, the conjunctive use of irrigation water over time in Morocco, land market integration and structural change in Zambia, a journal paper on international trade, exhaustible resource abundance and economic growth, and a thesis on the effect of transnational farmland investments over time on the Ghanaian economy. The data were also used in the book: Multisector Growth Models: Theory and Application, Springer pub. 2010. Additionally, the data is also used in my MS and Ph.D. level classes.

Kenichi Matsumoto Kenichi Matsumoto
Assistant Professor, School of Environmental Science, The University of Shiga Prefecture
Japan

I am using the GTAP 9 Data Base for developing a CGE model for analyzing climate change issues. I use the data base, but develop my own dynamic CGE model. One of my recent interests is to link climate science and climate economic studies.

Chris Bachmann Chris Bachmann
Assistant Professor, Department of Civil and Environmental Engineering, University of Waterloo
Canada

Using the GTAP Data Base, Dr. Bachmann is studying the impact of the Canada Korea Free Trade Agreement and the Comprehensive Economic and Trade Agreement (CETA) on Canada’s transportation system. He is currently quantifying the impact of these trade agreements on Canada’s trade flows in terms of the resulting interprovincial and international trade flows, measured by volumes and indicated by commodity group, compared to the pre-trade agreement state of trade flows. These projects are supported by Transport Canada and Industry Canada. Chris Bachmann is an Assistant Professor in the Department of Civil and Environmental Engineering at the University of Waterloo in Waterloo, Canada. Further details are available at: https://www.civil.uwaterloo.ca/bachmann/

Yang Jun Yang Jun
Professor, School of International Trade and Economics, University of International Business and Economics
China

I began to learning the GTAP Model in 2002 and used it intensively afterward. More than 50 academic research papers and reports had been published up to now by adopting standard or improved GTAP Model. Meanwhile, I have developed China's agricultural partial equilibrium model and have been trying to develop China's dynamic national and regional (provincial level) CGE models.

Peng Huang Peng Huang
Director of Industrial Analysis Division; Associate Professor, Shanghai WTO Affairs Consultation Center
China

My job is to analyze the modern and potential trade policies and provide policy facts and suggestions to government. Parts of my responsibilities are quantifying the impact of trade policy on the economy based some quantifying and empirical instruments, for example GTAP Model and other general or partial equilibrium models as well as some econometrical models. GTAP 9 Data Base is the most comprehensive database including enough economies and sectors, being the strong backing for lots of our analysis.

Olexandr Nekhay Olexandr Nekhay
Lecturer, University of Loyola
Spain

I am interested in trade analysis worldwide and more specifically in Eastern Europe (Ukraine, Russia, and the EU) and Central American countries. Furthermore such issues as tariff and non-tariff barriers to trade on agricultural goods and its modeling are in scope of my interest. Lastly, tax-subsidy policies and its modeling in GTAP frame (as an example EU Common Agricultural Policy).

Lucas Ferraz Lucas Ferraz
Head of Economic Modeling at the Centre for Global Trade and Investment, São Paulo School of Economics - Getulio Vargas Foundation
Brazil

I have been using the GTAP 9 Data Base to better understand the interplay between Preferential Trade Agreements and the formation of Global/Regional Value Chains, taking into account the role of non tariff barriers such as TBT, SPS and trade facilitation. This is, nowadays, a crucial issue for less integrated economies such as Brazil.

Gbadebo Oladosu Gbadebo Oladosu
Energy Analysis Team, Sustainable Systems and Social Sciences Group, Oak Ridge National Laboratory
United States

Uses the GTAP framework to implement and simulate CGE models for applied energy-environmental policy analysis. Static and dynamic CGE models are used to assess the impacts of U.S. biofuel policy on land use change, greenhouse gases emission, and the economy. Others applications include dynamic evaluations of the comparative implications of demand vs. supply shocks on global and regional economies.

Kamel Almutairi Kamel Almutairi
PhD Student, University of Arkansas
United States

I am interested in modeling renewable energy adoption in Saudi Arabia. My plans to use a combination of GTAP modeling and life cycle assessment (LCA). The LCA's analysis will be extended to include changes in economy and technology through using the Computable general equilibrium (CGE) in GTAP framework in order to include the indirect environmental consequences caused by the RE adoption.

Ching-Cheng Chang Ching-Cheng Chang
Research Fellow, Inst of Econ, Academia Sinica
Taiwan

The GTAP Model and Data Base has been used by our GEMTEE(General Equilibrium Model for Taiwan Economy and Environment) team in Academia Sinica to investigate the macroeconomic and sectoral impacts of Taiwan’s population dynamics and policies related to sustainable development and free trade agreements with New Zealand, Singapore and China. Recently, policy debates upon whether Taiwan should join TPP and RCEP are mostly based on GTAP simulations.

Kang Xia Kang Xia
Researcher, Academy of State Administration of Grain
China

I am engaged in the Chinese grain supply and demand analysis trying to establish a partial equlibrium model using lots of unique data. GTAP is a very effective and important tool kit to support this global analysis.

Richard Wood Richard Wood
Researcher, Norwegian University of Science and Technology
Norway

Richard Wood works with the GTAP Data Base in analysing environmental impacts associated with trade and final demand. Taking a “consumption based” approach, Richard looks at the interconnection between development, trade and the environment, in order to determine underlying drivers of our impacts. Richard is involved in database development of multi-regional input-output (MRIO) models, and in this context uses the GTAP Data Base alongside other MRIO databases to understand robustness and variability across the databases (see www.environmentalfootprints.org).

Rahul Arora Rahul Arora
Ph.D. Research Fellow, Indian Institute of Technology Kanpur
India

The topic of my Ph.D. dissertation is the evaluation of proposed Regional Comprehensive Economic Partnership (RCEP) agreement between 16 Asia-Pacific countries using general equilibrium framework. For this purpose, I am using the Static GTAP Model and the GTAP 9 Data Base is the only database which provides the latest, detailed and consistent data to estimate it. The main objective of my research is to evaluate the impact of reduction in trade barriers due to RCEP agreement on economies of member and non-member countries. The usage of the GTAP Model with the GTAP 9 Data Base allows me to report the direct and indirect effects of reducing trade barriers in a post-simulation environment.

Hikari Ban Hikari Ban
Professor, Kobe Gakuin University
Japan

I have studied the impacts of trade policy and climate change policy by using the GTAP Data Base and Model under several research projects. In particular, I am interested in the structural change caused by the policy and analyzing it by combining a CGE approach with an input-output approach. I intend to use the GTAP 9 Data Base and GDyn-E Model to investigate the economic and environmental effects of East Asian emission trading in the context of China’s 2030 carbon peak out.

Pantelis Kapros Pantelis Kapros
Professor, ICCS of National Technical University of Athens
Greece

Pantelis CAPROS is Professor of Energy Economics at NTUA (National Technical University of Athens). Over 25 years, he is leading research based on large-scale numerical models, which simulate energy markets, project energy investment into the future, optimize roadmaps for climate change mitigation and assess economic and societal impacts. He is the Director of E3MLab, a laboratory operating within the NTUA that specializes in the construction and use of large scale computerized models covering the areas of Energy, the Economy and the Environment. Such models are used to make projections and analyze complex issues requiring system-wide consideration. The European Commission, Governments, electricity and gas companies, and their associations, are widely using these models, namely PRIMES and GEM-E3, in their policy analysis, continuously over the last 20 years. Electricity and Gas market design, long-term energy/environment planning and macroeconomic analysis are the main topics of Prof. Capros's consultancy activities. Mathematical programming, mathematical economics and energy analysis are the scientific disciplines of Prof. Capros's teaching and publishing activities.

Natalia Tourdyeva Natalia Tourdyeva
Senior Economist, CEFIR
Russia

For me, the GTAP 9 Data Base is an essential source of data for a number of different lines of research on trade policy and regional integration. Our work at CEFIR is particularly focused on the countries of the Eurasian Economic Union (EAEU): Armenia, Belarus, Kazakhstan, Kyrgyzstan and Russia. The GTAP 9 Data Base is unique since it contains social accounting matrices for all five EAEU countries. This is why the GTAP 9 Data Base is the cornerstone of most CGE-type analysis produced by CEFIR, for example, a recent assessment of reduction of non-tariff barriers in the EAEU. We also use GTAP 9 as a source of input-output tables for assessment of trade in value-added and estimation of effective rates of protection for the EAEU countries.

Fernando Perobelli Fernando Perobelli
Full Professor, Federal University of Juiz de Fora
Brazil

I am using the GTAP framework to assess the systemic effects of increased economic relations between Brazil and the countries of the America Continent. To this end, we build scenarios such as: a) the formation of a new Free Trade Area of the Americas, namely, the elimination of import tariffs and export subsidies and production among the members; b) assessment of agreements such as the Pacific Alliance and Mercosur; and c) evaluation of NAFTA agreements - Mercosur, among others. We expected to bring answers on the trade integration of the Brazilian economy with other American countries.

GTAP Support

GTAP Network members in need of technical support are encouraged to use the following avenues to request assistance. General, non-technical inquiries may be addressed to contactgtap@purdue.edu.

  • GTAP FAQs
    The Center for Global Trade Analysis maintains a searchable repository of frequently asked questions on many different aspects of GTAP.
  • GTAP Support Email
    gtapsupport@purdue.edu is an account monitored by the Center for Global Trade Analysis' data team. Network members can email to reach a GTAP staff member for technical support on any GTAP product.
  • GTAP-L Mailing List
    GTAP-L is an email-based list to which many members of the GTAP Network subscribe in order to receive updates on the GTAP Data Base, model, events, jobs and technical assistance. For further information, to subscribe or to access a searchable archive of GTAP-L messages, please visit the GTAP-L Mailing List homepage