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Research Repository

This collection brings together work based on the Millennium Institute's models: the iSD model and its predecessor, Threshold 21 (T21). It includes reports and papers by the Millennium Institute and its partners, as well as research by universities, institutions and independent researchers who have applied these models in their own work.​

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The collection spans three decades of work, from the first T21 applications in the 1990s to current analyses of the Sustainable Development Goals, climate policy and green transitions in more than 40 countries. Use the filters to browse by type, country or region, focus area and year.

Report

Climate Policy and Energy-Intensive Manufacturing: Impacts and Options

Investigating the effects of CO2-pricing policies on US energy-intensive manufacturing industries, the study examines competitiveness impacts and potential mitigation strategies.

2009

United States

Energy, Environmental Policy, Climate Change

Conference Paper

Threshold21 Mali: System Dynamics-Based National Development Planning in Mali

Describes how the T21-Mali model was built and used to support national development planning in Mali.

2007

Mali

Sustainable Development, Policy Analysis

Conference Paper

A Dynamic Analysis of Organized Crime in Jamaica

Describes the organized crime sector of the T21-Jamaica model, which shows that social interventions cut crime fastest while greater investment in security forces brings larger reductions in the long run.

2007

Jamaica

Policy Analysis, Sustainable Development

Conference Paper

Modeling U.S. Energy with Threshold 21 (T21)

This book analyses the T21-USA model and shows how it can be used to assess the effectiveness and outcomes of complex US energy policies.

2006

United States

Energy, Policy Analysis

Report

Prioritization and Domestication of the Sustainable Development Goals

Malawi, despite economic reforms, remains one of Africa's poorest nations. Its development, guided by the MGDS, saw modest GDP growth under MGDS II. Progress on MDGs was mixed, with successes in reducing child mortality and combating diseases. MGDS III aims for a prosperous future, with priority actions identified in partnership with Millennium Institute and UNDP.

2005

Malawi

Policy Analysis, Sustainable Development, Health

Conference Paper

Can System Dynamics Flows Reach an Economic Equilibrium?

Explores economic equilibrium in system dynamics models, drawing on the use of a social accounting matrix in T21.

2003

Global

Economy, Policy Analysis

Filters

Categories
1995
1996.1
1997.2
1998.3
1999.4
2000.5
2001.6
2002.7
2003.8
2004.9
2006
2007.1
2008.2
2009.3
2010.4
2011.5
2012.6
2013.7
2014.8
2015.9
2017
2018.1
2019.2
2020.3
2021.4
2022.5
2023.6
2024.7
2025.8
2026
Authorship
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