CONCEPT
Digital Windfall Tax
Mazzucato's proposed mechanism — a levy on AI firm revenues — to capture a share of returns derived from publicly funded research and publicly produced training data, channeled toward public innovation and open-source infrastructure.
The digital windfall tax is Mazzucato's institutional proposal for capturing a share of the extraordinary returns AI companies are generating from technologies built on publicly funded foundations. Rather than attempting to price the training data directly — a technically complex undertaking involving questions of attribution, valuation, and international coordination — the windfall tax captures a share of the returns from the entire AI economy on the principle that those returns derive substantially from public inputs and should partially flow back to public purposes. Mazzucato has proposed that the revenue from such a tax be dedicated to open-source AI infrastructure, public AI capability, and support for creative labor on which AI systems depend. The proposal has been elaborated most directly in her critique of the UK AI Action Plan and in her 2024–2025 collaboration with Tommaso Valletti.
In The You On AI Field Guide
The windfall tax concept has a substantial precedent in resource-extraction industries. Oil