Global Trade and Environmental Model (GTEM)

From Open Energy Information

GTEM is a dynamic, multi-region, multi-sector, general equilibrium model of the world economy developed to address international policy issues with long-term global dimensions, like climate change response policies, and issues in international commodity and energy markets.

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This tool is included in the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership.


GTEM is a dynamic global general equilibrium model with the capability to address total, sectoral, spatial, and temporal efficiency of resource allocation. GTEM captures the impact of policy changes on large numbers of economic variables in all sectors of the economy, including gross domestic product, prices, consumption, production, trade, investment, efficiency, competiveness, and greenhouse gases. GTEM has three modules - the economic module, the population module, and the environmental module. GTEM has been used to analyze issues such as the climate change response policies including the Kyoto Protocol, trade reform under the World Trade Organization, and trends and issues in international commodity and energy markets.

When to Use This Tool

This tool is most useful for development impacts assessments focused on:

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Learn more about the topics for assessing the impacts of low-emission development strategies (LEDS).

Key Outputs

Projected economic impacts over time of given changes in policies, tastes, and technologies in any region of the world economy on all sectors and agents.

How to Use This Tool

Training Available
User manual and other resources are available on the website; recommended training on Computable General Equilibrium (CGE) and economic modeling approaches

Level of Expertise

Key Inputs

Economic and energy data

Case Studies

Examples of how Global Trade and Environmental Model (GTEM) has helped people assessing the impacts of low-emission development strategies in countries and regions:

Case studies are available at: