1 / 7

Zhi Wang U.S. International Trade Commission E-Mail: zhi.wang@usitc

Computable General Equilibrium Modeling and Its Application in Trade Policy Analysis Lab 2: Single and Multi-country CGE Model in GAMS. Zhi Wang U.S. International Trade Commission E-Mail: zhi.wang@usitc.gov. Outline (part one). Single Country CGE Model: IFPRI standard single country model

keefe-bray
Download Presentation

Zhi Wang U.S. International Trade Commission E-Mail: zhi.wang@usitc

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Computable General Equilibrium Modeling and Its Application in Trade Policy Analysis Lab 2: Single and Multi-country CGE Model in GAMS Zhi Wang U.S. International Trade Commission E-Mail: zhi.wang@usitc.gov

  2. Outline (part one) • Single Country CGE Model: IFPRI standard single country model • Model set up and calibration • How simulations are conducted • Change to your own data file • For more info: read Chapter 5 of “A Standard Computable General Equilibrium (CGE) Model in GAMS” by Lofgren, Hans et al, page 42-45.

  3. Steps to use IFPRI single country CGE model • The model program is segmented into two main GAMS files • Mod101.gms: set up the model, conduct calibration and solve for the base • Sim101.gms: define simulation scenarios, solve all defined simulation within a loop, and report simulation results • Zimbabwe.dat: the data file for the model • Save and restart the model program in IDE

  4. Steps to use IFPRI single country CGE model Open IDE • Create a project, define a project name and location • Run mod101.gms and save as base • Run sim101.gms to simulate the five scenarios defined in the program • Understand the input data file and prepare your own country specific data

  5. Outline (part two) • Global CGE Model for World Production and Trade: A seven-region, seven sector example • Model set up and calibration • How Simulation are conducted • Report programs • Consistence test of the model

  6. Steps to use Global CGE model • The model program is segmented into three main parts • ncea.gms: set up the model, conduct calibration and solve for the base • sim1.gms: define simulation scenarios (different FTA), solve all defined simulations • rptt.gms and trade.gms: write out all simulation results as Excel files • Save and restart the model program in IDE

  7. Consistence Test After Calibration Open IDE • Create a project, define a project name and location • Only relative price matters, one equation need dropped from the model • Test of Walras Law • Test of homogeneous, when the numeraie doubles all prices in the model should double, and should no impact on quantities

More Related