Technical Report

THE INTEGRATED GREEN ECONOMY MODELLING FRAMEWORK

Editor: 
José
PINEDA
Gisèle
MUELLER
Contributor: 
Roy
BOYD
Maria Eugenia
IBARRARÁN
Steven
ARQUITT
2017-08

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. Therefore, the IGEM framework is designed to serve three purposes: (1) it builds on UN ENVIRONMENT’s past country experience with modelling green economy policies to answer increasingly complex requests from governments; (2) it supports the endowment of countries with solid quantitative tools to inform the design and implementation of green economy policies; and (3) it advances the process of implementing and monitoring some of the Sustainable Development Goals (SDGs), adopted in September 2015.

The IGEM framework presents a methodology on how to integrate three of the main modelling 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. The goal of the first version of the IGEM framework is two-fold. First, it will test a concept of integrating three “greened” modelling approaches (SD, CGE and IO-SAM) to improve on the use of a single modelling tool for green economy policy assessment. Second, it will conduct specific evaluations of potential impacts of green economy policies.

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