Managing the Global Commons: Taxes, Bonds, and the Equivalence Between Fiscal and Financial Instruments

William Brock and Anastasios Xepapadeas

No 2612, DEOS Working Papers from Athens University of Economics and Business

Abstract: Global commons, such as the climate system and large-scale biodiverse ecosystems, generate benefits with public good characteristics that are not reflected in market prices, leading to inefficient resource use. While Pigouvian taxes provide a benchmark solution by aligning private and social incentives, their implementation is often constrained by political, institutional, and informational limitations. This paper examines whether financial instruments can serve as effective alternatives to conventional fiscal tools in managing global commons. Specifically, it shows that appropriately designed instruments-such as green bonds, sustainability-linked bonds, and resilience bonds-can attain the environmental outcomes achieved by optimal taxation. The proposed mechanism mobilizes external funding to compensate local agents for conservation, linking financial returns to ecosystem service flows and thus internalizing global externalities. Under certain conditions, these instruments decentralize the socially optimal environmental outcome without relying on taxation. The analysis provides a conceptual foundation for using financial mechanisms as policy tools in environmental management and climate policy

Keywords: Ecosystem management; Climate change; Pigouvian taxes; Green-Sustainability-Resilience bonds; Asset pricing (search for similar items in EconPapers)
JEL-codes: G12 Q20 Q54 Q58 (search for similar items in EconPapers)
Date: 2026-04-29
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Persistent link: https://EconPapers.repec.org/RePEc:aue:wpaper:2612

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