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Biodiversity Finance

Author

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  • Caroline Flammer
  • Thomas Giroux
  • Geoffrey Heal

Abstract

We study biodiversity finance—the use of private capital to finance biodiversity conservation and restoration—which is a new practice in sustainable finance. First, we provide a conceptual framework that lays out how biodiversity can be financed by pure private capital and blended financing structures. In the latter, private capital is blended with public or philanthropic capital, whose aim is to de-risk private capital investments. The main element underlying both types of financing is the “monetization” of biodiversity, that is, using investments in biodiversity to generate a financial return for private investors. Second, we provide empirical evidence using deal-level data from a leading biodiversity finance institution. Our findings are consistent with a three-dimensional efficient frontier (return, risk, and biodiversity impact)—deals with a favorable risk-return profile tend to be financed by pure private capital, whereas for other deals the biodiversity impact needs to be sufficiently large for blended finance to be used. Overall, our results suggest that blended finance is an important tool for improving the risk-return profile of these projects, thereby increasing their appeal to private investors and crowding in private capital. Finally, our results suggest that private capital is unlikely to substitute for effective public policies in addressing the biodiversity crisis.

Suggested Citation

  • Caroline Flammer & Thomas Giroux & Geoffrey Heal, 2023. "Biodiversity Finance," NBER Working Papers 31022, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:31022
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    Cited by:

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    2. Koetter, Michael & Winter, Birte & Wöbbeking, Carl Fabian, 2025. "The price of beauty: Biodiversity effects on residential housing markets," IWH Discussion Papers 21/2025, Halle Institute for Economic Research (IWH).
    3. Pi, Tianlei & Jiao, Linke & Zhou, Yuhan & Shi, Jin, 2025. "Can biodiversity risk improve firm ESG performance? Empirical evidence from China," Finance Research Letters, Elsevier, vol. 76(C).
    4. Xin, Wei & Grant, Lewis & Groom, Ben & Zhang, Chendi, 2025. "Noisy biodiversity: The impact of ESG biodiversity ratings on asset prices," Ecological Economics, Elsevier, vol. 236(C).
    5. Hackmann, Angelina, 2024. "Bridging the biodiversity financing gap," SAFE White Paper Series 103, Leibniz Institute for Financial Research SAFE.
    6. Hutchinson, Mark C. & Lucey, Brian, 2024. "A bibliometric and systemic literature review of biodiversity finance," Finance Research Letters, Elsevier, vol. 64(C).
    7. Ma, Feng & Wu, Hanlin & Zeng, Qing, 2024. "Biodiversity and stock returns," International Review of Financial Analysis, Elsevier, vol. 95(PA).
    8. Coqueret, Guillaume & Giroux, Thomas & Zerbib, Olivier David, 2025. "The biodiversity premium," Ecological Economics, Elsevier, vol. 228(C).
    9. He, Feng & Wei, Chunyang & Lucey, Brian & Hao, Jing, 2025. "Beyond greenwashing: How does firm-level biodiversity disclosure affect corporate sustainability strategy?," Pacific-Basin Finance Journal, Elsevier, vol. 92(C).
    10. Chen, Luoye & Li, Tao & Zhang, Yi, 2025. "Municipal Finance and Biodiversity Conservation," 2025 AAEA & WAEA Joint Annual Meeting, July 27-29, 2025, Denver, CO 360756, Agricultural and Applied Economics Association.
    11. Fenichel, Eli P. & Dean, Monica F., 2024. "Blended academic insights for biodiversity and conservation finance," Ecological Economics, Elsevier, vol. 223(C).
    12. Zhu, Xiaoyu (Ross) & Zhou, Changyun & Zeng, Hanzhe, 2025. "Can inclusive finance curb sustainability regulatory risk for corporations?," Research in International Business and Finance, Elsevier, vol. 77(PA).
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    More about this item

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors
    • G3 - Financial Economics - - Corporate Finance and Governance
    • Q14 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Agriculture - - - Agricultural Finance
    • Q2 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation
    • Q5 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics
    • Q57 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Ecological Economics

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