Does generative AI facilitate investor Trading? (Cheng et al. 2025) | FT50 JAE

English Podcast Starts at 00:00:00Bengali Podcast Starts at 00:14:41Hindi Podcast Starts at 00:31:13German Podcast Starts at 00:39:58ReferenceCheng, Q., Lin, P., & Zhao, Y. (2025). Does generative AI facilitate investor Trading? Early evidence from ChatGPT outages. Journal of Accounting and Economics, 101821. https://doi.org/10.1016/j.jacceco.2025.101821‌‌Youtube Channel⁠https://www.youtube.com/@weekendresearcher⁠Connect over linkedinhttps://www.linkedin.com/in/mayukhpsm/Welcome to Revise and Resubmit 🎙️—the podcast where top‑tier research steps out of FT50 journals and into your headphones.Today’s episode dives into a paper that reads like a crossover between Wall Street and Silicon Valley:👉 “Does generative AI facilitate investor trading? Early evidence from ChatGPT outages”by Qiang Cheng, Pengkai Lin, and Yue Zhao.This study is published in the Journal of Accounting and Economics—a prestigious, field‑shaping journal on the FT50 list 🏆, published by Elsevier. When a paper lands here, it is not noise. It is signal.Picture this:Markets open. News breaks. Traders scan, sort, decide.Then—⚡—ChatGPT goes down.Not a quirky tech glitch for fun, but a real disruption for people moving real money.These authors turn those outages into a natural experiment and ask:When ChatGPT goes dark, do investors actually back off? 🔍Does trading volume fall when GenAI is suddenly unavailable? 📉Do price impact and return variance shrink as informed trading temporarily weakens?And over the long run, does GenAI‑assisted trading make stock prices more informative? 📈The evidence says yes:Trading volume drops during outages, especially for firms with fresh corporate news and those held by transient institutional investors.Short‑run measures suggest less informed trading when GenAI is offline.Yet over time, GenAI‑assisted trading improves stock price informativeness—the market’s ability to embed information into prices.When the bot blinks, the market hesitates.When the bot returns, the market sharpens.GenAI is no longer a toy at the edge of finance; it is woven into how information becomes trades and trades become prices.🙏 Huge thanks to Qiang Cheng, Pengkai Lin, and Yue Zhao, to Elsevier, and to the Journal of Accounting and Economics, a highly prestigious FT50 journal, for putting this work into the public record.If you enjoy decoding papers like this, make sure to subscribe to “Revise and Resubmit” on 🎧 Spotify, 📺 YouTube channel “Weekend Researcher”, and tune in on Amazon Prime and Apple Podcast so you never miss an episode.Because if brief ChatGPT outages can measurably change how investors trade and how prices reflect information… what happens to markets when GenAI is always on, everywhere, for everyone? 🤔