Finance prof+co-director PE Program @Columbia_Biz. RA @nberpubs. Quant. Advisor @correlationvc. Co-organizer @workshopefi. Code: https://xitter.cf/t.co/h62ya0ity1

Manhattan, NY
Joined April 2010
Michael Ewens retweeted
If you are voting in AFA elections, please vote for Stijn Van Nieuwerburgh as Second Vice President! There are few people in the profession who have invested more in training and mentoring, or in communication and impact in research. He will upgrade what the AFA does here.
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Private equity researchers: submit work ([email protected]) to the Columbia Private Equity Conference held March 4th and 5th at @columbia_biz PhD students: submit work to the PhD workshop (held on the 4th) Info: columbiapeconference.com/cal… 📅Deadline: Dec. 1st
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Michael Ewens retweeted
🚨 JOB OPPORTUNITY — RESEARCH ASSISTANT Together with my colleagues in the Finance Division at @Columbia_Biz, we are hiring a full-time Research Assistant starting in Summer 2027. More information and applications here: apply.interfolio.com/193960 #EconTwitter #FinTwitter
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📣 Deadline extended! Submissions for the 8th @workshopefi WEFI Student-Led Workshop are now due Wednesday, September 30. PhD students working on entrepreneurship and innovation are encouraged to submit. Papers co-authored with faculty are welcome. 🔗 workshop-efi.com/student-led…
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We've posted an update to the intangible asset stocks from Ewens, Peters, and Wang (2024). The new feature is AI-first: a prompt+Python package and pointers to the paper's md. I assume agents will do the work in the future, so make it easy for them: intangiblesdata.org/
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My colleagues at Columbia and I are kicking off the Retail Investors in Private Assets (RIPA) Online Seminar. Private markets are opening up to households, and regulators are expanding access. Can households benefit? What happens to prices, returns, and risk? 1/2
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Send in your papers by the 20th.
📢Call for papers! WEFI 2026 Fall Series will start mid-September. We invite you to submit your Entrepreneurship, Entrepreneurial Finance, and Innovation papers. Email: [email protected]. Deadline: Aug 20, 2026. Thank you for all your support in keeping WEFI strong!
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Michael Ewens retweeted
I'm pleased to announce the 2nd American Finance Association Junior Faculty Mentoring Program (JFMP) event, which I am co-organizing with Audra Boone. The program provides mentorship, research feedback, and professional development to junior faculty in finance. 🧵
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Built a powerful way to audit AI data cleaning. I'm extracting valuation methodologies from N-CSR filings. A council of LLMs extracts info from a complex table and then shows me 20 random examples for human validation. I speed it up w/ RoughDraft: github.com/Lex-Inc/roughdraf… (1/2)
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RoughDraft shows raw data, extracted info, and a link to the SEC URL, all in an editable md file. I check quality (in a new tab in @manaflowai), then (i) add a comment (ii) edit data or (iii) leave it alone. Click "I'm done" -> Claude reads the results and updates the scraper.
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Here is the result of a check where Claude can re-build the data extractor from the QA work.
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Reminds me of the 1st time I earned something from my economics training. Vonage (VoIP provider) offered me, a customer and 4th-year college student earning <$15K/year, shares in its IPO. It was a clear signal that smart $ was not interested. Then this happened:
NEW: Fidelity lowers the minimum account requirement for the SpaceX IPO from as high as $500,000 to just $2,000.
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Amazing multiple AIs use case: Claude talks to Codex about a plan. I'm rebuilding complex data and often send plans b/t the AIs. In Cmux (see below), instead tell Claude, "Ask Codex next to you for feedback". You can tell Claude to just check every 2 minutes, w/o pasting
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I'm pleased to announce the 2nd American Finance Association Junior Faculty Mentoring Program (JFMP) event, which I am co-organizing with Audra Boone. The program provides mentorship, research feedback, and professional development to junior faculty in finance. 🧵
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Sessions cover research development, publishing strategy, tenure navigation, and the broader challenges of an academic career in finance. Beyond the workshop itself, participants join an ongoing cohort network that continues after the meeting. 3/N
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Join us in March!
📢Call for papers for the ESADE Entrepreneurial Finance Conference, organized by Vicente Bermejo, Martí Guasch, and me in Barcelona on March 11–12, 2027. Confirmed speakers: Michael Ewens, Sabrina Howell, Ramana Nanda & David Robinson. Submit by June 30: form.jotform.com/26137371121…
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Michael Ewens retweeted
An Econ PhD student at the 20th ranked program who is working on stuff they are passionate about will have a better job market than one at MIT who's been doing nothing but phd-app-maxxing since undergrad. People get confused by this because they don't observe *how* successful people came about their insane knowledge bases. It wasn't by relentlessly grinding away at stuff because they had to. They look at Scott Kominers and say "if i grind and learn as much math as he did, i will be successful." You can't! *You* can't learn as much math as Kominers because he gets energized by configuration results for type ii lattices. You will burn out if you try to do it this way. You cannot, through grind alone, learn more about the economics of cities than Glaeser, or about how to maximize a value function than Acemoglu. Research careers are long. Most people give up and stop working on research (graph is share of elite PhD graduates with at least one publication in year X after graduation). If you're starting a PhD, you're presumably doing it to have a successful 40-year research career. The number one factor in whether that happens is not which program you get into, it's whether you find a research angle that energizes you enough to push through the endless barriers an academic career throws in your path. This is why a lot of the received wisdom around PhD applications is wrong. If you're 100% consumed by the predoc rat race already, it's going to be a long, hard road ahead. Obv you still have to do admissions, you should study a lot for the GRE, sigh it seems like taking real analysis is probably worth it. But spending time on the things that energize you about economics is a no-brainer, whether it's policy, or blogging, or whatever, you gotta do the things that light your fire and make you want to be on this road.
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