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Joint Research Center (JRC)
RunDynam

Recursive Dynamic Model - RunDynam

EconomyCGE

Quality & Transparency

Quality

Model uncertainties

Models are by definition affected by uncertainties (in input data, input parameters, scenario definitions, etc.). Have the model uncertainties been quantified? Are uncertainties accounted for in your simulations?

not applicable
Not applicable for a CGE model.

    Sensitivity analysis

    Sensitivity analysis helps identifying the uncertain inputs mostly responsible for the uncertainty in the model responses. Has the model undergone sensitivity analysis?

    yes
    Both RunGTAP and RunDynam, the static and the dynamic version of the GTAP model, include a in-build tool to perform sensitivity analysis with respect to parameters.

      Have model results been published in peer-reviewed articles?

      yes
      GTAP model has been widely used in many publications. There is also a specific journal focused on GTAP modelling.

      Has the model formally undergone scientific review by a panel of international experts?

      Please note that this does not refer to the cases when model results were validated by stakeholders.

      no

        Model validation

        Has model validation been done? Have model predictions been confronted with observed data (ex-post)?

        yes
        The network of GTAP users represents an excellent resource for extension of the data base. Another benefit from broad participation is the extensive scrutiny to which the data base is subjected. Those who identify areas for improvement or extension of the data base are free to make this available to GTAP staff in order to have it considered for incorporation into the next release of the data base. The operational concept is "if you don't like it, help fix it!

          Transparency

          To what extent do input data come from publicly available sources?

          This may include sources accessible upon subscription and/or payment

          Entirely based on publicly available sources

          Is the full model database as such available to external users?

          Whether or not it implies a specific procedure or a fee

          yes
          Public Availability. The data base is made available to anyone requesting it, at a modest fee. This prevents needless duplication of effort in creating this public good. By charging for the data base we are also able to cover a portion of the costs incurred in constructing it. However, those who contribute in a significant way to the construction of this data base receive it for free, and are given access to pre-releases as well, alongside the GTAP Consortium members who provide the bulk of the financial support through their annual contributions to the Project.

            Have model results been presented in publicly available reports?

            Note this excludes IA reports.

            yes

            Have output datasets been made publicly available?

            Note this could also imply a specific procedure or a fee.

            no

              Is there any user friendly interface presenting model results that is accessible to the public?

              For instance: Dashboard, interactive interfaces...

              no

                Has the model been documented in a publicly available dedicated report or a manual?

                Note this excludes IA reports.

                yes
                One requirement for new contributions to the GTAP Data Base is that the sources and procedures used to create them be provided along with the data. This publication represents a summary of the documentation for the GTAP Data Base. Additional detail may be found on the GTAP website, or in the documentation of previous versions of GTAP. However, in spite of this extensive documentation, other questions about data sources and methods may arise. Therefore, we refer interested users to the chapter authors themselves in those cases where this document is insufficiently detailed. Often it is only through bilateral correspondence of this sort that data base limitations can be properly identified and remedied This takes us to the final ingredient of the GTAP Data Base, namely quality control.

                Is there a dedicated public website where information about the model is provided?

                yes

                Is the model code open-source?

                yes

                  Can the code be accessed upon request?

                  not applicable