Multi-regional Input-Output (MRIO) models enable a detailed analysis of economic interdependencies and environmental impacts across multiple regions. The standard approach to MRIO modeling is based on linking national input-output tables, supplemented by interregional trade data and satellite accounts. The goal is to provide a holistic analysis of interregional supply chains, integrating economic, social, and environmental dimensions.

RIMES is an MRIO model that maps the economic interconnections, regional dependencies, and sectoral structures at the district level in Germany. It covers 400 districts and independent cities, each with 37 sectors. The modeling follows the principles of the standard MRIO approach. Trade structures between sectors in the different districts are determined using a gravity trade model.

The MRIO table in RIMES is calculated for a year with current reference, i.e. for the last available year of employment statistics and can be projected into the future through links with the GWS models PANTA RHEI, INFORGE, and MORE. This allows for diverse scenario analyses, such as assessing the implications of decarbonization for the existing structures in a given region or evaluating regional policy measures.