MIT Professor of Global Economics and Behavioral Science

Cambridge, MA
Joined September 2013
o3-mini is now available: buff.ly/4jBdjE7 I’m using the o3-mini-high version, and it definitely feels faster than o1. The output seems similar (a promising sign given this is just the mini version) Looking forward to the full #o3 release—I expect a much bigger leap
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ChatGPT o1 vs. DeepSeek R1: Interactive Tools. I gave both AIs the same prompt. o1 repeatedly failed whereas DeepSeek took longer but worked. This isn’t an isolated example. A good reminder to continue mapping the jagged frontier, which is moving over time. #AI #DeepSeek
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I've been preparing examples to show my students where AI can struggle… and I came across this one. I asked ChatGPT4o to generate an image of a glass COMPLETELY full of water. Sounds simple, right? Turns out, it’s surprisingly hard. #AI #TeachingMoments #AIChallenges
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The new OpenAI Operator lets AI control tools we use daily. Still early and buggy, but a glimpse into a future where AI handles email, posts, and more. I tested it, and it even published a LinkedIn post for me (later taken down). Exciting yet unsettling. #AI #Operator #OpenAI
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The 'Stargate' AI Initiative seems to make two things clear: (1) OpenAI is committed to be being truly terrible at naming things (2) The investment is massive bet on AI as the future of the American economy. #stargate, #AI, #LLMs buff.ly/4jsPnCL
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Still Using Book to Market for a Value Metric? Read This. - alphaarchitect.com/?p=63569 By: @ebasilico
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Going by the Book: Valuation Ratios and Stock Returns papers.ssrn.com/sol3/papers.… "our findings suggest some institutions have been slow to adapt to the declining relevance of book values for selecting value stocks" via my prof buddies @professorso and @charles_cy_wang Follow them!
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Here's a better link to Alphanomics: pdfs.semanticscholar.org/435…
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My favorite document for combining the ideas of market (in)efficiency and value investing: Alphanomics by Charles Lee and Eric So. Worthy of study. nowpublishers.com/article/Do…
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Study offers a way to read the tea leaves of the earnings calendar on.wsj.com/1BGqJmT via @WSJ
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