VM stock and policy scenario model
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?
- response
- yes
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- To a limited extent. Most uncertainty is typically not in the model but in the input data. At the low aggregation level of commercial, economic and environmental data for consumer and professional products the uncertainty is often high and the model is typically used to reach consensus amongst stakeholders of what are acceptable data.
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Sensitivity analysis
Sensitivity analysis helps identifying the uncertain inputs mostly responsible for the uncertainty in the model responses. Has the model undergone sensitivity analysis?
- response
- yes
- details
- As mentioned, sensitivity analyses with the model are used in preparatory studies and impact assessments to reach consensus. In the final reporting, sensitivity analysis may also be presented to give policy makers an impression of the uncertainty.
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Have model results been published in peer-reviewed articles?
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- no
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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.
- response
- no
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Model validation
Has model validation been done? Have model predictions been confronted with observed data (ex-post)?
- response
- yes
- details
- The model has undergone internal review by Viegand Maagøe staff where validations with other sources has been done as much as possible including by industry, experts, stakeholders etc.
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Transparency
To what extent do input data come from publicly available sources?
This may include sources accessible upon subscription and/or payment
- response
- 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
- response
- no
- details
- Data are directly visible in the model and published in the preparatory and review studies usually with their own public project website, where intermediate and final results (data inputs in the model) are given. The final reports of these studies stay available on the Commission website for the general public.
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Have model results been presented in publicly available reports?
Note this excludes IA reports.
- response
- no
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Have output datasets been made publicly available?
Note this could also imply a specific procedure or a fee.
- response
- no
- details
- Follows the same availability rules as IAs from the Commission.
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Is there any user friendly interface presenting model results that is accessible to the public?
For instance: Dashboard, interactive interfaces...
- response
- no
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Has the model been documented in a publicly available dedicated report or a manual?
Note this excludes IA reports.
- response
- no
- details
- Data and calculations are directly visible in the model
Is there a dedicated public website where information about the model is provided?
- response
- no
- details
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Is the model code open-source?
- response
- no
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Can the code be accessed upon request?
- response
- yes
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