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Abstract
Despite the importance of green innovation in climate change adaptation and mitigation, green patent announcements do not have a positive effect on shareholder wealth, regardless of institutional investor ownership or attention, climate risk exposure, or climate change concerns. Also, we find no evidence that the number of green patents obtained by a company affects its environmental score, institutional ownership, or Tobin' Q. Nor is it a mispricing or a delayed reaction to green patents: portfolio strategies with green patent announcements consistently yield negative alphas. Overall, we find that green patents do not increase shareholder wealth.
| Original language | English |
|---|---|
| Place of Publication | Rochester, NY |
| Number of pages | 71 |
| DOIs | |
| Publication status | Published - 26 Sept 2022 |
Keywords
- green innovation
- patents
- climate change
- shareholders
- institutional investors
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Decarbonization Finance Series II: The Path to Net Zero Innovation & Sustainability
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