Threshold 21 (T21) is designed to support comprehensive, integrated planning and is a valuable quantitative tool for policy testing, monitoring, and evaluating results. Once a country identifies its vision, and key goals are determined, T21 generates scenarios describing the future consequences of the proposed strategies.

Threshold 21 (T21) integrates economic, social, environmental, and resources sectors in a single national sustainable development model, which provides national planners with an analytical tool to understand the complex interrelationships among these sectors and to make decisions about where to invest scarce resources.

2015年10月2日 · Threshold 21 (T21) is a dynamic simulation tool designed to support comprehensive, integrated long-term national development planning by comparing different …

2020年3月1日 · In its business-as-usual simulation to 2050, T21 China 2050 reveals some of the sustainability challenges facing China, including 1) aging population and labor force decline, 2) …

Threshold 21 (T21) is a System Dynamics based model designed to support national development planning. T21 is structured to analyze medium-long term development issues at the national level. The model integrates in a single framework, the economic, the social, and the environmental aspects of development.

The Threshold 21 (T21) simulation model supports such an approach (UNEP, 2014). T21 is an integrated and dynamic planning tool that enables transparent cross-sectoral analyses of the...

The T21 modelg isprecise not for predictions makin of tool for exploring alternative policy policies that may improve conditions in s a asystem collection of individual sectors. T21 Core is the model with three parts: populati

T21: Analytic Support for Comprehensive, Integrated Planning ing, monitoring, and evaluating results. Once a country identifies its vision, and key goals are determined, T21 generates scenarios describing the future consequences of the proposed strategies. Users can quickly trace changes in outcomes back to the assumptions

To help support the decision making of regional and national leaders and bring a wide variety of stakeholders from all member states into policy debates, the ECOWAS T21 model was developed. The...

What is T21 for? The model was originally built for serving three purposes: Studying mid-long term development issues Testing alternative policies Enhancing learning about system