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The Productivity
Bond Model

About the model, the author, and the vision. See the full model.

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About

About the Model

The Productivity Bond Model is a sovereign debt instrument designed to replace perpetual‑growth‑dependent financing with productivity‑linked prosperity. It is the first financial instrument that explicitly acknowledges the finite nature of our planet and aligns economic incentives with ecological reality.

🌍
Finite Planet
Economic activity respects ecological limits.
🤝
Shared Prosperity
Productivity gains benefit all citizens.
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Transparency
NPI legally locked, independently audited.

Origin & Research

The model was developed as part of the Traffic Torch research initiative. It draws on decades of economic theory, including Piketty's r > g, planetary boundaries, state‑contingent debt instruments, and common‑pool resource governance. The result is a practical, market‑based solution that turns the financial system from a driver of instability into a stabilising force.

Author

💸 ♾️

Ylia Callan is an independent researcher and systems thinker focused on incentive design, ecological economics, and institutional innovation. He is the author of The Infinite Debt Problem and the lead architect of the Productivity Bond Model. His work bridges finance, ecology, and public policy to create a resilient, prosperous future.

Research Philosophy

The model is built on three pillars:

  • Finite planet – economic activity must respect ecological limits.
  • Shared prosperity – productivity gains should benefit all citizens, not just investors.
  • Transparency and trust – the NPI is legally locked and independently audited.

Open Source & Collaboration

The model is fully open source. You can fork the repository, run simulations yourself, and contribute to the development. All code is licensed under the MIT License.

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📚 ISBN: 979-8-23578-956-2

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