References
- Berlemann, M., Eurich, M. & Meyer, H. (2024). HWWI Commodity Price Index: A technical documentation of the 2023 revision. Review of Economics, 75(1), 1–20.
- IEA – International Energy Agency. (2025a). Gas 2025: Analysis and forecasts to 2030.
- IEA – International Energy Agency. (2025b). Coal 2025: Analysis and forecast to 2030.
- OECD – Organisation for Economic Co-operation and Development & FAO – Food and Agriculture Organization. (2025). OECD-FAO Agricultural Outlook 2025-2034.