DataM is glad to host the official web site of the DEMETRA model.
Developed by the Joint Research Centre of the European Commission, the Dynamic Equilibrium Model for Economic developmenT Resources and Agriculture (DEMETRA) is a single-country computable general equilibrium (CGE) model, developed in GAMS.
The JRC employs DEMETRA within the framework of the Pan-African Network on the economic Analysis of Policies 
Already active from April 2021 as very synthetic page, the website is now available at the following URL:

It includes a thorough description of the model, the complete documentation, the updated list of publications, dashboards and datasets that have been and will be produced with this model, plus the reference to the JRC DEMETRA team members and the partners.
Do you want the code?
Very soon, this site will allow to request the source code of the model, distributed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) licence. We are preparing an electronic mechanism to request the software upon signed acknowledgement of usage terms.
Stay tuned.