"Brainstorming" by kevin dooley, CC BY 2.0.AI investment news did not lift FTSE 100 share prices, study of 138 announcements finds
An event study of 138 AI investment announcements made by 53 FTSE 100 companies between 2019 and 2023 found an average announcement-day stock reaction of 0.114%. That is marginally positive but not statistically significant, and both parametric and non-parametric tests agreed.
The North American Journal of Economics and Finance
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