Ioannis Spyridopoulos (@ioannisspy) profile picture

Assistant professor of finance at American University. Dad of two little devils. Duke and Rice alumnus.

Washington, DC
Joined July 2015
Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)Photo by Ioannis Spyridopoulos (@ioannisspy)
Ioannis Spyridopoulos retweeted
Volatility laundering 101. @CliffordAsness should love it. I wonder if endowment taxes will incentivize lower marks.
I worry that many large endowment and pension fund managers won't get the joke.
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A frank and productive exchange of views with my counterpart on key issues like expanding the global supply of candy and toys and tightening sanctions against chores.
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Ioannis Spyridopoulos retweeted
Grief is not a purely negative emotion. Over time, it becomes bittersweet—sadness is joined by love and gratitude. Nostalgia is a healthy response to loss. Longing for the past motivates us to appreciate the present and improve the future. The goal of coping is not to erase pain. It's to gain purpose.
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Ioannis Spyridopoulos retweeted
Policy ideas: A child tax credit paid in charging cables.
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Ioannis Spyridopoulos retweeted
Russia's invasion of Ukraine exposed that the EU is deeply broken. Transshipments to Russia via an out-of-the way place like Kyrgyzstan continue uninterrupted, even after more than two years of this nonsense. The people of Europe deserve better than this. Deep reform is needed...
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Ioannis Spyridopoulos retweeted
My kid’s high school just announced a sweeping new cell phone policy for the coming year: “Cell phones and smart watches must be powered off and stored away between the hours of 8:00 a.m. and 3:15 p.m.” Thank you @JonHaidt for kickstarting this national movement!! 🙏🏻
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Ioannis Spyridopoulos retweeted
The latest prisoner exchange, where Putin personally greeted the murderers, spies and fraudsters at the airport, is only the latest reminder that Russia is not a state, but a mafia entity masquerading as a state. It is not only part of the organized crime, it literally is organized crime. You will never ever establish common ground with them, because they are inherently incompatible with the rule-based order and civilization itself. Having bilateral relations is not only a waste of time and resources, but in fact counterproductive with the interests of the West. The earlier this is commonly understood, the earlier this mafia scourge can be treated with in a proper way. Appeasers say that Russia is a fact. Well, the Soviet Union was a fact, as well, until it got removed from the map and tossed on the trash heap of humanity. It can be done, again, and the road to this outcome leads through the Ukrainian victory.
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I agree. It’s kinda like TSA pre-check. After you do it you start wondering why you didn’t do it earlier
idk why ppl don't use github more in econ. I use it both for coding and tex/lyx drafts. It's super easy to use if you just use the desktop client, and means you can just never keep old versions around ever again since you can always recover
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Ioannis Spyridopoulos retweeted
idk why ppl don't use github more in econ. I use it both for coding and tex/lyx drafts. It's super easy to use if you just use the desktop client, and means you can just never keep old versions around ever again since you can always recover
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Ioannis Spyridopoulos retweeted
It's time to update this meme
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I'm excited about my first NBER Summer Institute! 📊 My co-author, Ali Sanati, presents our study testing whether public or private equity markets allocate capital more efficiently. The presentation will be live on NBER's YouTube at 1:50 pm EST today (bit.ly/3RWs344). The full paper is here: bit.ly/3WdlAo9 Here are a few quick highlights of our study: US private equity markets grew from $250 billion in 2000 to over $2.8 trillion in the early 2020s, almost eclipsing public equity markets. If markets differ in how efficiently they allocate capital, this trend could have significant economic implications. - We find significant differences in how efficiently public and private equity markets direct capital to productive uses. - A dollar invested through public markets generates at least twice the revenue and patent applications compared to private markets. - Surprisingly, late-stage deals from firms staying private longer drive these patterns, not young firms in early-stage deals. - We attribute this efficiency gap to two key attributes in public markets: higher information efficiency and more robust governance mechanisms. - Our study is particularly relevant given the rapid growth of private markets and raises important questions about the economic implications of shifting capital allocation from public to private markets. We are always thankful for comments and open to debate on this important topic!
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Made me smile :) “Based on all this and the experiences in my career, here is my advice: Be yourself.”
I have been reading excellent threads with detailed advice to grad students and young economists on what to do at conferences. This thread tells you about my first experience at the @nberpubs Summer Institute (SI) and my advice. 1/n
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Ioannis Spyridopoulos retweeted
Student protesters in my hometown of Gent, Belgium, occupied part of the University with tents last week. The students want the University to cut all ties with 🇮🇱, which has been attacked by a violent terrorist regime. Gent is about 40 miles from the port of Zeebrugge, still one of the largest entry points for 🇷🇺 LNG into the EU. The sale of LNG funds Putin's invasion of 🇺🇦 even today. Another violent regime. The invasion is responsible for the deaths of 1000s of civilians. The 🇺🇦 border is about 1100 miles away from Gent. You'd think the students would be upset about that, and they would demand that the port in Zeebrugge deny access to ships transporting 🇷🇺 LNG. But I've never seen any student protests about that. The simple one-size-fits-all model these students are using to make moral judgments is misfiring badly.
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Ioannis Spyridopoulos retweeted
The hard truth is that - since Russia invaded Ukraine - the US is the only western country with integrity. The US has basically shut down trade with Russia, while the rest of the world wheels and deals. Here is South Korean trade with Russia. You wouldn't know there's a war...
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Without explicitly acknowledging the value of execution, we risk research integrity. The research idea is unambiguously important, but we cannot denigrate and label the craftmanship involved when dealing with complex data as "RA work." We cannot forget that 000s of difficult decisions and turns along the way have shaped a paper into something new and better. #AcademicTwitter @AcademicChatter
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Ioannis Spyridopoulos retweeted
Was with my teen girls on spring break - every time they picked up their phones and scrolled, it was photo after photo of their teen girl friends posing in tiny bikinis on their spring breaks. I don’t need an RCT to tell me that can’t be good for anyone, on multiple levels...Oh and the stories about who is in what group text chat and who got kicked out of which group chat, and who is where on the Snap map and who was left out but could see where everyone else was together…Nope. Don’t need an RCT to tell me what a nightmare that is for teen girls….Oh and the families on vacation eating meals with young kids wearing headphones watching their iPads not talking with their parents or grandparents or listening to their conversations. I don’t need an RCT to tell me something precious has been lost…Kudos to all the teens and kids who can rise above it and persist in confidence and joy. 🙏🏻
What puzzles me about the social media debate is why our null hypothesis/prior should be that there is no effect. These platforms are literally A/B tested to maximize user lock-in, addiction, and social comparison. This is pretty well known. 1/5
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Ioannis Spyridopoulos retweeted
Nothing like choosing between one party that doesn’t want kids to learn about evolution and another party that doesn’t want them to learn algebra.
Editorial: Not every student needs algebra 2. UC should be flexible on math requirement (via @latimesopinion) latimes.com/opinion/story/20…
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