Integrating planetary boundaries into corporate accounting.

The Triple Accounting Chair: A new scientific tool to steer comprehensive performance

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This webinar explored the foundations and practical applications of the Thesaurus-3K (T3K) method, developed by Goodwill-management in partnership with Aix-Marseille School of Economics (AMSE) and the Institut Louis Bachelier.

An innovative approach that aims to place companies back within the framework of planetary boundaries and the Donut economy, by integrating environmental and social impacts into their accounting systems alongside financial results.

A groundbreaking research program

This webinar is part of the Triple Accounting Chair, officially launched on September 9, 2025, for a duration of three years.

Led by Alan Fustec, founder of Goodwill-management, and Raouf Boucekkine, professor of economics at Aix-Marseille University and scientific director of the Chair, this initiative seeks to strengthen the scientific foundations of the Thesaurus-3K (T3K) method.

This revolutionary approach enriches traditional balance sheets with two additional components:

• The social and societal value created or destroyed (inclusion, workplace health, social cohesion, etc.)
• Environmental debt (GHG emissions, resource consumption, land artificialisation, etc.)

In practice, a company may show a positive financial result while generating a higher ecological or social debt, thus revealing a net destruction of value.

A real wake-up call for business leaders, according to Alan Fustec:

“With triple accounting, we want to give companies a faithful mirror of their reality. A company may show a financial profit of €1 million while generating €2 million in environmental debt. In that case, it is not creating value but destroying it.”

From research to action

The Triple Accounting Chair aims to bring science back to the heart of economic practices, equipping companies with reliable, operational, and scientifically robust tools to align their business models with planetary boundaries.

The research will notably focus on:

• Improving methods for assessing impacts on biodiversity and natural resources
• Studying the links between thermodynamics and economics to rethink the notion of value
• Publishing scientific work and a reference book

“The role of the Chair is to provide companies with reliable and robust tools that allow decision-makers to align their models with these boundaries,” emphasizes Raouf Boucekkine.

A partnership serving sustainability

Supported by the Institut Louis Bachelier, this program brings together academia and the business world through a consortium of sponsoring partners (Baker Tilly, Ekodev, ERB, Nexity).

Its ambition is to create a common language between researchers and economic actors to prepare the concrete implementation of the polluter-pays principle, which is expected to become an essential standard.

In practice: a tool for business leaders

During the webinar, participants also heard from TIBCO, a committed digital services company that already uses triple accounting to guide its sustainability transformation.

The goal: provide business leaders with a practical tool to measure and steer the economic, social, and environmental performance of their organizations.

Watch the webinar: Replay available here: https://lnkd.in/eXiFr9aR

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