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Value Capture in Commercial Open Source: Services, Funding Paths, and the FLOSS Value Network (Europe, 2026)

Stefane Fermigier (Abilian) · sf@abilian.com

Draft working paper v0.7, 2026-09-23. Conceptual synthesis with a verified formal core; every proposition has a proof, a numeric cross-check, and a Monte-Carlo robustness report; the funding-path reading is stated with the liquidity condition under which it holds; no firm-level estimate is reported.

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Abstract

Most accounts of the commercial open-source sector are written about its most visible minority, venture-backed product vendors relicensing against hyperscalers. This paper starts from the service majority, treating its share of the sector as a hypothesis to be measured. It builds on the value-network theory of FLOSS business models of Jullien, Viseur and Zimmermann (2025), in which a project's value lies in managing the software flow and the 3A services (assurance, adaptation, assistance) are sold to a segmented user base. It adds one axis the theory does not treat, the firm's funding path, reduced in a two-period model to a discount parameter. Four verified results follow. Contribution to the project has a closed form that rises with patience, a reading that holds where the self-funded firm's cash constraint is slack and is bounded by outside capital where it binds. Enclosure by relicensing has a unique patience threshold; a community able to fork shrinks the region where it pays, and erosion of the service margin or slowing growth widens it, which is when the visible relicensings happened. A heterogeneous population sorts into an open-service and an enclosed-product cluster on patience and conversion economics. The 2018 blueprint of the sector is revisited and the 2026 predictions are mapped to a survey instrument; no estimate is reported.

Keywords: commercial open source, value capture, funding paths, venture capital, relicensing, FLOSS value network.

JEL: L17, L86, L21, G24, O34.

Optimal contribution to the open-source project against the firm's patience, for three service margins: contribution rises with patience and with the margin the firm earns on the base its contribution grows.

Optimal contribution to the open-source project against the firm's patience, for three service margins: contribution rises with patience and with the margin the firm earns on the base its contribution grows.

About this paper

Programme OSS economics
Genre Draft working paper
Version v0.7
Date 2026-09-23
Full text PDF
Plain-language explainer The other ninety percent

Cite this paper

Fermigier, S. (2026). Value Capture in Commercial Open Source: Services, Funding Paths, and the FLOSS Value Network (Europe, 2026).
Draft working paper v0.7, Abilian Econ Lab.
https://econ.lab.abilian.com/papers/value-capture/