Intertemporal Computable Equilibrium System (ICES)

From Open Energy Information

ICES is a recursive dynamic general equilibrium model developed to assess the final welfare implication of climate change impacts on world economies, to study mitigation and adaptation policies, and to evaluate trade and public-policy reforms.

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


ICES was designed provide a climate change impact assessment beyond the quantification of direct costs, including second and higher-order effects. ICES is based on the GTAP database, and shares the core structure of the GTAP-E model version.

The ICES general equilibrium structure, in which all markets are interlinked, is tailored to capture and highlight the production and consumption substitution processes at play in the social-economic system as a response to climate shocks.

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

Emissions, macroeconomic, trade.

How to Use This Tool

Level of Expertise

Key Inputs

Economic and energy data

Case Studies

Examples of how Intertemporal Computable Equilibrium System (ICES) has helped people assessing the impacts of low-emission development strategies in countries and regions:

Case studies are available at:

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