Côte d’Ivoire Advances Climate and Fiscal Planning with Updated T21-iSDG Model

The Millennium Institute recently led a two-week workshop in Grand-Bassam, held from May 19 to May 29, 2025, to support the validation and update of the T21-iSDG Côte d’Ivoire model. The workshop was hosted by the Direction Générale de l’Économie (DGE) and focused on enhancing national planning tools to address the country’s current policy and climate-related priorities.

Originally developed in 2015, the T21-iSDG model helps simulate long-term development scenarios by integrating economic, social, and environmental dynamics. Over the years, the model has evolved to better incorporate climate considerations. This most recent update responds to the government’s need for a modern decision-support tool, particularly to meet its commitments under the Resilience and Sustainability Facility (RSF) program signed with the International Monetary Fund (IMF). One of the reform measures under the RSF requires a detailed assessment of climate-related fiscal risks to be included as an annex to the national budget.

The workshop brought together over 30 participants from key national institutions, including the Ministère des Finances et du Budget, Ministère du Plan et de la Prospective, CIRES (CAPEC), SODEXAM, ANStat, CIAPOL, and ONPC.

The sessions covered several technical components. Participants reviewed the updated model structure and discussed the assumptions used to build the reference scenario. They explored simulation results across economic, social, and environmental sectors, with a focus on quantifying the budgetary risks linked to different climate change trajectories. The training also introduced participants to System Dynamics, calibration of the model, and construction of climate risk scenarios.

This recent workshop builds on the Millennium Institute’s continued collaboration with Côte d’Ivoire, including the project Investing in Early Childhood Development and Education for Socioeconomic Development in Côte d'Ivoire, which assessed the long-term impacts of conditional cash transfers and pre-primary education, maternal and childhood health programs, and quality of education. Together, these efforts aim to strengthen policy planning and advance sustainable development outcomes in the country.