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Alex Medina Sosa

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Case report Open access Sep 2026

AI Events, Persistence, and Volatility in US Utility and AI-Exposed Stocks: The AI-Power Channel

This paper examines whether four AI events between 2022 and 2025 - ChatGPT, GPT-4, the EU AI Act vote, and DeepSeek - changed the behaviour of fourteen US-listed stocks. The focus of the analysis is on two utilities that signed power purchase agreements with large AI companies, Constellation Energy and Vistra, which ar...

G. Caporale, L. Gil-Alana, Alex Medina Sosa · 0 citations

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