African Institute for Climate, Trade and Economic Modelling
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Technology

The integrated economic, climate and infrastructure models, the AI report-generation pipeline and the interactive web applications that power AICTEM’s country diagnostics.

Models

An integrated modelling stack

AICTEM’s four report series follow a 3 + 1 design: the three economy-wide diagnostics — Climate, Growth and Trade — run on a common core of computable general equilibrium (CGE) engines, while Infrastructure is powered by a separate spatial and power-system stack built entirely from open geodata. A shared data foundation keeps results comparable.

Economy-wide CGE stack

Powers Climate Growth Trade

Two general-equilibrium engines and dedicated climate & carbon modules, sharing global input–output databases and national accounts.

CDCGE

Climate engine

The Climate-Dynamic CGE couples a multi-region model built on GTAP 11 with the Dynamic Integrated Climate–Economy (DICE) model to assess emissions, warming, climate damages and the economics of adaptation and mitigation.

SDCGE

Growth & Trade engine

The Structural-Dynamic CGE, solved with the PATH mixed-complementarity solver, projects output, productivity, sectoral reallocation and welfare — and, in its trade configuration, AfCFTA tariff scenarios, cross-border value chains and embodied emissions.

DICE-linked climate assessment

Module

Connects economic activity, emissions pathways and climate damages, so policy scenarios compare on a consistent, physically-grounded basis.

Land-use carbon accounting

Module

Builds the land-use carbon accounts behind the Climate reports, adding emissions and land-use-change analysis to the CGE core.

Spatial & power-system stack

Powers Infrastructure

Spatial economic and power-system models at grid-cell and settlement level, built entirely from open geodata and deep-research.

Gridded spatial equilibrium

Connectivity

A spatial-equilibrium model on populated 0.25° grid cells, calibrated to gridded population, productivity and OSRM travel times, identifies the road upgrades with the largest national welfare and market-access gains.

Optimal transport networks

Investment

A city-network general-equilibrium model (Fajgelbaum & Schaal, 2020) prices individual road works and allocates a fixed construction budget for maximum welfare — the engine behind our Transport Network Optimizer.

Least-cost power system

Power

A nodal PyPSA dispatch and capacity-expansion model, on open PyPSA-Earth grid data, assesses supply adequacy, transmission bottlenecks and the cheapest mix of new generation to serve future load.

Power & digital access

Access

Settlement- and hexagon-level analytics on the Africa Infrastructure Database (Krantz, 2024) combine wealth estimates with asset distances, and causal ML estimates of power–digital complementarities.

One shared data foundation

The CGE stack builds on GTAP 11 and the EMERGING MRIO v2.2 input–output tables, integrated with African national accounts and environmentally-extended satellite accounts — globally consistent, locally relevant. The spatial stack rests on open geodata: the Africa Infrastructure Database (AID), OSRM routing, LocalGDP/population grids, PyPSA-Earth + OSM and deep-research power-system data.

Report Generation

From simulation to report, with AI agents

AICTEM uses Claude Opus agents to turn the modelling stack into finished country diagnostics. A first set of agents runs a fixed, pre-defined suite of simulations on the models; a second set compiles the raw outputs, produces the figures and drafts the narrative. The workflow is encoded in a growing library of purpose-built skills that we standardise and continuously improve. We welcome feedback on the quality of the reports and suggestions for improvements.

1

Simulate

Agents run a fixed, pre-defined set of scenarios and analyses on the models — the same suite for every country, so results are reproducible and comparable.

2

Compile

Further agents ingest the simulation outputs, build the tables and figures, and assemble them into the structured sections of each report.

3

Generate

Agents draft the narrative around those results, applying a shared, versioned library of skills that we refine with every reporting cycle.

Numbers you can trust

Every figure reported is drawn directly from factual model simulation outputs based on real state-of-the-art economic and geospatial data — never generated or estimated by the large language model (LLM). The agents orchestrate the pipeline and write the prose; the numbers come from the models, keeping each report auditable and free of LLM hallucination.

Web-Applications

Run the models yourself

Each modelling stream — Trade, Growth and Climate — is exposed as an interactive web application, so policymakers and researchers can run on-demand scenarios and watch results update live. These are built as Julia-native tools with the open-source Genie.jl framework, on the same engines and data that produce AICTEM’s reports. Alongside them, the Transport Network Optimizer, Infrastructure Risk Analyzer and Africa Monitor support the Infrastructure series with transport-network design, climate-risk screening and macroeconomic monitoring.

Trade

Cross-border flows & tariffs

Trace goods, tariffs and value chains as they cross African borders under AfCFTA and trade-policy scenarios.

  • SDCGE trade simulator
  • AfCFTA & tariff scenarios
  • Value-chain & embodied-emission flows
Open the application
Growth

GDP & structural change

Project output, productivity and welfare as economies respond to shocks, investments and reform pathways.

  • SDCGE GDP projections
  • Sectoral reallocation & productivity
  • Welfare & household impacts
Open the application
Climate

Warming, damage & adaptation

Track warming pathways, climate damages and adaptation economics feeding AICTEM’s Climate reports.

  • CDCGE + DICE damage assessment
  • Land-use carbon accounts
  • Adaptation & mitigation pathways
Open the application
Transport Network Optimizer web application preview
Transport

Transport Network Optimizer

Compute welfare-maximizing transport networks on user-supplied graphs, based on the quantitative spatial model of Fajgelbaum & Schaal (2020).

  • Optimal infrastructure investment under budget
  • Interactive map & live solver console
  • Powered by OptimalTransportNetworks.jl
Open the application
Infrastructure Risk Analyzer web application preview
Risk

Infrastructure Risk Analyzer

Automated climate and natural-hazard risk analysis of infrastructure assets against global hazard layers.

  • Floods, earthquakes, cyclones & landslides
  • Asset classification & damage estimation
  • High-resolution map & chart exports
Open the application
Africa Monitor web application preview
Monitor

Africa Monitor

A macroeconomic information platform for Africa — leading indicators, data stories and custom visualizations, updated monthly.

  • 1,000+ series from 16 public sources
  • Monthly updates across all 195 countries
  • Free R & Python API access
Open the application