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What is the Threshold 21 Model?

Threshold 21 is a simulation tool that has been designed to support comprehensive, integrated long-term national development planning. The tool integrates economic, social and environment factors into its analysis allowing key insights into the possible impact of development policies. With over 20 years’ worth of research this tool has also had application carried out with the World Bank, UN agencies, developing country governments and government organisations.

T21 is transparent, collaborative, robust and customisable. Policy makers are able to see the variables that influence outcome and as a result can adapt their policies in order to ensure they meet their goals. Because the tool has had so much research put into it, it’s incredibly robust. This coupled with its flexibility means it can be adapted to suit the needs of any country. The tool has been designed to help promote collaborative working and facilitates participation and consensus building.

Who is the T21 model for?

The T21 model can be applied to most countries or regions in order to support and help them develop their national plans.

How does the T21 model work?

The T21 framework includes three interconnected spheres, each reflecting the structure and relationships of economic development. The three spheres are economic, social and environmental and within these are sectors which interact with each other and the sectors in the other spheres such as population, sustainability and investment.


What can the T21 model achieve?

Contributing to the national planning process is the main purpose of the T21 model. A country can generate scenarios to see the future consequences of their proposed strategies. However, it can also be a useful tool for conducting stakeholder consultations, producing strategy documents that address sectoral or industrial interests, producing data and analyses for loan negotiations and monitoring and evaluating national plans.

The T21 model is especially useful for preparing Poverty Reduction Strategies and for monitoring progress towards the Millennium Development goals or other national goals.

Currently there are more than 15 customised T21 models including Malawi, Mozambique and Bangladesh (which represent the less industrialised countries) and the US and Italy (representing the more industrialised countries).

What is the impact?

This quantative tool helps to deepen the understanding of the key structural relations as well as enhancing the analysis of the development strategies of a country when development planning. The T21 model provides key insights into the potential impact of policy decisions and development across a wide range of sectors, highlighting how different strategies will interact with one another.



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