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GTAP University (GTAP-U): 2024 GTAP Preferential Trade Agreements (PTA) Course

2024 GTAP Preferential Trade Agreements (PTA) Course

"Applied Policy Analysis on Preferential Trade Agreements"

GTAP Preferential Trade Agreements (PTA) Logo

Dates/Deadlines (USA Eastern Time Zone)

Course Application March 18 - June 23
Enrollment Late July
GTAP PTA Course September 9 - October 20

General Information
Dates: September 9 - October 20, 2024
Location: GTAP PTA is delivered fully online. There is no onsite component to this course.
Offered by: Center for Global Trade Analysis, Purdue University
Registration Fees:
$1,500 Professional (Developed Country)
$1,125 Professional (Developing Country)
$750 Student (Developed Country)
$375 Student (Developing Country)
Course Content
The GTAP PTA Course 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 version 7. The objectives of the GTAP PTA course are to provide participants with an opportunity to develop their applied skills in the design of PTA experiments, the implementation of changes in tariff and non-tariff barriers, and the analysis of model results. The curriculum emphasizes an intuitive treatment of economic theory, provides structured experiences in manipulating and running the standard GTAP model within the RunGTAP software environment, and culminates in team-based research projects. At the end of the course, participants will have developed skills in the analysis of tariff and non-tariff liberalizations in a PTA.

During the online course, participants will:
  • consider the potential impacts of PTAs, including on GDP, trade, factors of production and sectoral production - connecting applied model results to trade theories
  • operationalize the modelling of different aspects of PTAs within the GTAP CGE model, including tariff and non-tariff barriers
  • learn about different approaches to modelling non-tariff measures and their implications for importing and exporting countries
  • learn how to interpret general equilibrium model results, including the impact of alternative closures

The course is delivered fully online and supported by the textbook, Introduction to Computable General Equilibrium Models, 3e, the eBook version of which, as well as all other necessary course software and materials, will be provided to participants. Learning takes place through active discussions among the participants and instructors, which are carried out as asynchronous, threaded conversations on the classroom bulletin board, and through virtual team work on collaborative projects and online meetings facilitated by the instructors.

Content Overview
  • Week 1 - "Getting Started"
    • Participants download and familiarize themselves with the course website, material, and software
    • Participants are encouraged to review materials on the RunGTAP software
    • Review uploading a version in RunGTAP and viewing the database
    • Review how to construct a numeraire experiment in RunGTAP
  • Week 2 - "Analysis of FTAs and Tariffs"
    • Understand the welfare effects of trade taxes
    • Learn to construct a simple tariff experiment and view results
    • Learn to construct a PTA experiment in which bilateral tariffs are eliminated
    • Learn to identify trade creation and trade diversion
    • Learn to analyze the results of a PTA experiment by examining some of the key variables and tracing through the impacts using AnalyseGE
    • Learn to implement and analyze the results of a closure swap
  • Week 3 - "NTMs in GTAP"
    • Learn about econometric approaches to estimating the AVEs of NTMs
    • Learn about the alternative mechanisms used for depicting NTMs in the standard GTAP Model
    • Learn how to incorporate the AVE of an NTM into the GTAP Data Base using Altertax
    • Learn how to use subtotals to decompose and compare results
    • Learn to construct an experiment in which NTMs are reduced in RunGTAP
    • Compare alternative modelling mechanisms and their implications for assessing the effects of reductions in NTMs
  • Weeks 4-5 - "Group Research Project"
    • As part of the research project participants will be provided a GTAP Data Base aggregation and will develop their own questions, shocks, closure and applications. Participants are encouraged to ask questions, try out various tools and think critically about their scenarios.
    • Participants are encouraged to bring their own ideas, as well as look at various papers to get a feel for what a good CGE analysis entails.
  • Week 6 - "Wrap-Up and Evaluation"
    • Course evaluation

Time Commitment
Participants should expect to spend approximately 10-12 hours/week on this course.

What GTAP PTA "Graduates" Are Saying...

"An excellent course with a very dedicated instructor and staff."

"The course is very effective. Instructions and guidance are excellent as always."

"I liked reading on new ideas how to interpret and estimate NTMs and simulate their elimination. I am also very pleased with deep, detailed and comprehensive comments of course instructors."

"The research project is a very good idea - great to work in teams with the fellow participants"

"Thanks for a great course!"

"I want to express my gratitude to your entire team for the professional organization of the learning process and for providing an opportunity for an in-depth study of GTAP models"

"Bravo pour la qualité remarquable de cet enseignement."

"The homeworks were great but the group project was the most valuable. Having the opportunity to implement everything we've learned and see how others' did the same in their presentations was very useful."

"Thanks for this great opportunity to learn and discuss deeply the concepts related to the analysis of PTAs and the liberalization of NTMs by using GTAP CGE model. I really appreciate the detailed explanations and guidance of instructors."

June 23 Deadline This course does not provide an overview of the GTAP Model. Participants are expected to have completed the GTAP 101 and/or GTAP Short Course prior to applying for this course.

Individuals interested in taking this course must apply on the GTAP website. Applications will be reviewed after the deadline and those individuals accepted will receive an email detailing how to register and submit payment. Please note that application does not guarantee acceptance.

Registration Rates
The registration fees (in USD) for this course are detailed below and include the course textbook (eBook version) as well as instruction during the online course. The eBook version of the course textbook will be sent to registrants the week before the course starts.

Registration Rates (USD) Developed Country Developing Country1
Professionals $1,500 $1,125
Students2 $750 $375

Rate Details and Eligibility Requirements
  1. Developing Country Rates - In order to be eligible for a discounted, developing country rate, applicants must currently be residing in a country listed on the "GTAP Developing Countries List".
  2. Student Rates - Student rates are only available to current, full-time students. Post-docs and students concurrently working in any professional capacity are not eligible for these rates. Registrants may be asked to provide proof of current academic status.
All cancellations must be emailed to Ginger Batta. Registered participants that are unable to participate in the course will receive a 50% refund until August 25, 2024. No refunds will be issued after this date. Deferments to later courses are not allowed.

System Requirements

Participant computers and setup must meet the following specifications.

  • Computer Requirements
    • Windows 7 or later

      (Macs can be used, but users must either be able to dual boot to Windows or install/access Windows through a virtual machine. Note that technical support for Macs will not be provided.)

    • 32-bit or higher
    • i5 or higher processor
    • 500MB free hard drive space
    • 1GB RAM
    • Administrator access (or ability to have course software installed)
  • Other Requirements
    • Reliable internet connection (broadband recommended)
    • Microsoft Office
    • Adobe Reader or Acrobat
    • Zip utility program

Note on YouTube
During this course, some online materials are hosted on YouTube; therefore, participants must have the ability to access YouTube in order to view these videos. If a participant is unable to access YouTube, they must have access to a VPN or remote computer as video source files will not be provided.

Contact Information
Ginger Batta (
Lead Program Manager
Center for Global Trade Analysis
Department of Agricultural Economics, Purdue University
403 Mitch Daniels Blvd., West Lafayette, IN 47907-2056 USA
Course Instructors
Terrie Walmsley Dr. Terrie Walmsley is an Associate Professor at the University of Southern California and Director of ImpactECON, a consulting firm specializes in applied trade global analysis using general equilibrium modeling. Terrie has undertaken numerous trade policy studies and developed several models, including incorporating supply chains, non-tariff measures, migration, dynamics and income inequality into both Gempack- and Gams-based models. Her clients have included more than a dozen international agencies such as the World Bank, the Asian Development Bank, U.S. International Trade Commission (USITC), the European Commission, the Organization for Economic Co-operation and Development (OECD), among others. Terrie previously served as the Director of the Center for Global Trade Analysis and Associate Professor at Purdue University. As Director of the Center for Global Trade Analysis, Terrie was responsible for overseeing the operations and strategic direction of the Center including: the release of versions six, seven, and eight of the GTAP Data Base; various graduate and non-graduate educational offerings; and numerous research projects and grants. In 2012 she published, as co-editor with Dr. Elena Ianchovichina from the World Bank, a book documenting the Dynamic GTAP model. In 2015, Terrie was inducted into the GTAP Hall of Fame for her contributions to the GTAP network and modeling.

Anna Strutt Dr. Anna Strutt is a Professor of Economics at the University of Waikato in New Zealand. Anna’s primary area of research expertise is in international policy analysis, particularly quantitative analysis using global general equilibrium models. As well as publishing numerous academic papers, she has served as a consultant or expert advisor to a range of national and international organizations, including: the Asian Development Bank; Asian Development Bank Institute; Australian Centre for International Agricultural Research; Economic Research Institute for ASEAN and East Asia (ERIA); EU-VietNam Multilateral Trade Assistance Project; Food and Agriculture Organization of the United Nations; Mekong Institute, Thailand; New Zealand Ministry for Primary Industries (MPI); New Zealand Ministry of Foreign Affairs and Trade; United Nations Economic and Social Commission for Asia and the Pacific; United Nations Conference on Trade and Development; and the World Bank. She was a GTAP Research Fellow, (2015-2022) and is currently a GTAP Consortium Member At Large. Anna is also a member of International Steering Committee for Pacific Trade and Development (PAFTAD) and an advisor to UNESCAP’s Asia-Pacific Research and Training Network on Trade (ARTNeT).

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Center for Global Trade Analysis
Department of Agricultural Economics
Purdue University
403 Mitch Daniels Blvd.
West Lafayette, Indiana 47907-2056 USA

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