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| Type | Journal Article |
| Scope | Discipline-based scholarship |
| Title | Economic and financial consequences of water risks: The case of hydropower |
| Organization Unit | |
| Authors |
|
| Item Subtype | Original Work |
| Refereed | Yes |
| Status | Published in final form |
| Language |
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| Journal Title | Ecological Economics |
| Publisher | Elsevier |
| Geographical Reach | international |
| ISSN | 0921-8009 |
| Volume | 218 |
| Page Range | 108048 |
| Date | 2024 |
| Abstract Text | Reduced water availability poses risks for many economic activities. This paper studies how water risks affect hydroelectricity generation in Europe and the US and whether these risks are priced in by financial markets. To this end, we build a novel dataset for the period 2015–2022, which combines plant-specific hydroelectricity generation with geo-specific water physical risks and equity returns. We find that water risks, measured using model-based aggregate water risk metrics as well as precipitation anomalies, are significantly associated with reduced electricity generation, although the effect disap- pears after two months. We then link the power plants in our sample to the equity returns of their owners to investigate whether financial markets adequately price water risks. Using a portfolio sorts approach, we find weak evidence of a negative risk pre- mium. Given the real negative effect of water risks on generation, we conclude that the lack of a positive risk premium amounts to mispricing of water risks by financial markets. |
| Free access at | DOI |
| Digital Object Identifier | 10.1016/j.ecolecon.2023.108048 |
| Other Identification Number | merlin-id:24207 |
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| Keywords | Hydroelectricity generation, Water risks, Risk premia, Geospatial data, Portfolio sorts, Financial risk, Mispricing |