TY - UNPB TI - Generative AI Mania and Macro Vulnerability: Asymmetric Volatility Dynamics of Tech Giants via EGARCH-X (2023-2026) AU - Yang, Fuli AU - Lin, Shiyu PY - 2026 UR - https://papers.ssrn.com/sol3/papers.cfm?abstract_id=7071718 ER -