Dear Nuraini,

One approach is to use the GAMS software, found at https://www.gams.com/. They provide the software and data, which is not free but a student version is available to practice on. If this is you first step in this direction, then you should first take a look at it and ask other questions.

An energy data base was added to the gams program by Thomas Rutherford. You can also search the web under his name to see if he still maintains that data base.

Good luck in you research.

p.s. You may also want to look at the WTO website, as well as the US ITC website for examples and data.

Dear Nuraini,

Start by reading about the the following types of model before you construct your own:

IFPRI model: http://www.ifpri.org/publication/standard-computable-general-equilibrium-cge-model-gams-0

GTAP model: https://www.gtap.agecon.purdue.edu/models/current.asp

STAGE model: http://www.cgemod.org.uk/stage.html

All the best.

Check PEP_MPIA web, you will get many example of CGE model and practice them using GAMS student version.

Calculate parameters using SAM Data. Need to estimate elasticities using actual data or can take them from existing empirical studies. That generate BAU quickly.