Under the Partnership for Action on Green Economy (PAGE), UN Environment collaborated with modelling experts from around the globe to develop the Integrated Green Economy Modelling (IGEM) framework that aims to better respond to countries’ needs in terms of analysing the cross-sectoral impacts of Green Economy (GE) policies, so as to incorporate some of the lessons learned from the application of existent modelling tools, such as the T21 model. The IGEM framework presents a methodology on how to integrate three of the main modeling techniques used for green economy policy assessment to refine impact analysis of green policies and investments in the economy. It presents the linkages between a system dynamics (SD) model and a computable general equilibrium (CGE) model, building on input-output and social accounting matrix (IO-SAM) models.
