Search for models

New tool to inform the design of cost-effective and sustainable water policy decisions

An open source model to examine how future water demand will evolve in response to socioeconomic change and how water availability will change in response to climate.

A general equilibrium model to assess China’s agricultural prospects and challenges up to 2030, covering national, regional and county level.

Water quality modeling for water availability/scarcity assessment, water-energy-land-environment nexus analysis and identification of cost-effective solutions under long-term changes.

A modeling framework for medium to long-term energy system planning, energy policy analysis, and scenario development

A model to assess emission and pollution reduction strategies that combat air pollution and climate change simultaneously.

A dataset for quantitative projections of the so-called Shared Socioeconomic Pathways (SSPs) and related Integrated Assessment scenarios.

By applying multidimensional demographic models that incorporate differential fertility, mortality, migration, and educational attainment, IIASA's Population and Just Societies Program has developed the Demographic Data Sheets (DDS), which provide population projections by age, sex, and education for Europe, Asia, and the world. The DDS also present indicators on human capital and innovative measures of aging developed at IIASA, offering insights into demographic change across world regions and individual countries. These data products build on IIASA’s long-standing expertise in population forecasting and multidimensional demographic modeling.

Three different scenarios for the implementation of the Sustainable Development Goals, focusing on the goals that could impact fertility and mortality rates and thus population growth are now available for downloading.

IIASA researchers have developed multi-dimensional/multi-state models to study population dynamics at the global, regional, national and sub-national level.

The Equity and Justice (EQU) Research Group has developed a number of decision-support and process-oriented methods. These tools help stakeholders and policy-makers make sense of the complex governance landscape, while clarifying trade-offs and synergies associated with alternative policy options. 

The BinD model is a new generation dynamic disaster-macroeconomic modeling framework that captures supply and demand-side constraints on a developing economy facing disaster risk.

In the framework of the Centre of Expertise on Population and Migration, a research partnership between IIASA's World Population Program and the European Commission's Joint Research Centre, IIASA provides science-based knowledge on migration and demography to support EU policy.

Platform to assess the heterogeneity of disaster risk.

How can education shape Africa’s demographic and economic future? The African Human Capital Data Sheet 2026 presents new evidence on population trends by level of education, skills, and demographic transitions across the African continent.

Stochastic Quasi-Gradient (SQG) methods have been developed for solving general optimization problems without exact calculation of objective function and constraints (let alone of their derivatives). SQG methods enable a sequential revision of approximate solutions towards the optimal using newly acquired information on the system, obtained via either direct on-line observations or(and) simulations. 

The framework for eco-genetic modeling offers flexible tools for exploring the course and rates of multi-trait life-history evolution in natural populations.

The Working Group on Fisheries-Induced Evolution (WGEVO) of the International Council for the Exploration of the Sea (ICES) has developed a general framework for investigating eco-evolutionary changes in fish stocks and their utilities in terms of ecosystem services and for assessing the management implications of fisheries-induced evolution through Evolutionary Impact Assessments (EvoIAs).

The complexity and dynamical nature of community interactions make modelling a useful tool for understanding how biodiversity patterns in communities develop over time and how they respond to external perturbations.

Ensuring that common goods and open-access resources—everything from clean air and the global climate to the internet and civil security—are equitably and fairly available to everyone requires incentive mechanisms.