Arthur Lewbel (@lewbel) 's Twitter Profile
Arthur Lewbel

@lewbel

Economics, econometrics, juggling, travel, politics. Econ Professor at Boston College and citizen of the world.

ID: 36356858

linkhttps://sites.google.com/bc.edu/arthur-lewbel/home calendar_today29-04-2009 13:30:31

1,1K Tweet

4,4K Followers

733 Following

Giovanni Mellace (@giomellace) 's Twitter Profile Photo

I'm proud that last Friday Arthur Lewbel was awarded an honorary doctorate from my university Economics, SDU. Arthur, Nadja van 't Hoff, and I have been working on a project titled Limited Monotonicity and the CC-LATE and I hope will be working on many more projects sdunet.dk/en/nyheder/eve…

Vitor Possebom (@possebomvitor) 's Twitter Profile Photo

But I also cover Sebastian Calonico's nonparametric estimator, Pedro H. C. Sant'Anna's specification test for the propensity score, Análise Real's sensitivity analysis, Tymon Słoczyński's interpretation of the 2SLS estimand and Arthur Lewbel's approach to extrapolating RDD results. And more stuff too.

Arthur Lewbel (@lewbel) 's Twitter Profile Photo

Last Friday, I was privileged to receive an honorary doctorate from SDU, the University of Southern Denmark. I want to thank Giovanni Mellace, Lone Grønbæk Jørgensen, and everyone else at SDU - I feel humble and grateful.

Last Friday, I was privileged to receive an honorary doctorate from SDU, the University of  Southern Denmark. 

I want to thank Giovanni Mellace, Lone Grønbæk Jørgensen, and everyone else at SDU - I feel humble and grateful.
Secretary Janet Yellen (Archived) (@secyellen) 's Twitter Profile Photo

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.

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.
Ethan Mollick (@emollick) 's Twitter Profile Photo

I invited a live HeyGen AI avatar to a Zoom meeting with the instructions that it run the most stereotypical corporate Zoom meeting ever. What have I done.

Arthur Lewbel (@lewbel) 's Twitter Profile Photo

There are two groups that aim to falsely undermine trust in today’s US election integrity: 1. Russia and its authoritarian allies. 2. the Republican Party. Actually, that’s just one group.

Arthur Lewbel (@lewbel) 's Twitter Profile Photo

MLK Jr said, “The arc of the moral universe is long, but it bends toward justice.” Today is a setback, but the time of chaos & lies will not endure. We must be good people, manifest morality, & fight the rising tide of hate. The struggle for liberty & justice for all never ends.

Noah Smith 🐇 (@noahpinion) 's Twitter Profile Photo

An English prof recently declared that economics was "fake" because economists don't read Marx. Well, that's just silly. But reading Marx is still useful, as a cautionary tale of what can happen when social science gets too arrogant. noahpinion.blog/p/should-econo…

Giovanni Mellace (@giomellace) 's Twitter Profile Photo

We’re looking for a motivated researcher to apply for a Marie Skłodowska-Curie postdoc with our Econometrics and Data Science group at SDU! Our research focuses on Causal Inference, Machine Learning, Big Data. Full support for promising projects. inomics.com/scholarship/jo…

Rohit Lamba (@rohlamba) 's Twitter Profile Photo

Week 7: The theory paper in focus this week is "Kidney Exchange" by Roth, Tayfun Sönmez & M. Utku Ünver. Undoubtedly, it is one of the most influential (in terms of research in economics) and impactful (in terms of goodness in society) papers of 21st century (micro)economics.

Week 7: The theory paper in focus this week is "Kidney Exchange" by Roth, <a href="/tyfn_sonmez/">Tayfun Sönmez</a> &amp; <a href="/muunver/">M. Utku Ünver</a>. Undoubtedly, it is one of the most influential (in terms of research in economics) and impactful (in terms of goodness in society) papers of 21st century (micro)economics.
Justin Wolfers (@justinwolfers) 's Twitter Profile Photo

And here's the number of RECIPIENTS of social security in each age bucket with the death field set to false (and recipient set to true). A mere 89,106 are aged 99+, not the tens of millions suggested by Elon Musk.

And here's the number of RECIPIENTS of social security in each age bucket with the death field set to false (and recipient set to true). A mere 89,106 are aged 99+, not the tens of millions suggested by <a href="/elonmusk/">Elon Musk</a>.
Giovanni Mellace (@giomellace) 's Twitter Profile Photo

Is your outcome a qualitative variable, but you still want to conduct causal inference? Check out our new paper! We also provide an open-source R package, causalQual, for easy implementation: 🔗 github.com/riccardo-df/ca… 📄 Read the paper: arxiv.org/abs/2502.11691

Momentum Chaser (@electricfutures) 's Twitter Profile Photo

After several delays, Department of Government Efficiency has finally posted its purported savings. Why did it take so long to create a simple webpage with a 1000-row table? Who knows! Let's dig in. Headline number: $55B saved. They list the savings per nixed contract. This should be easy to verify then. 🧵

Justin Wolfers (@justinwolfers) 's Twitter Profile Photo

Three things worth knowing about the current fiscal debate: 1. When they're talking about savings, the numbers are usually billions (though sometimes millions). 2. When they're talking about tax cuts, the numbers are usually trillions. 3. A trillion is a thousand times larger

Arthur Lewbel (@lewbel) 's Twitter Profile Photo

Sorry to hear about the passing of Ed Leamer. I recall once telling him I was working on nonparametric testing, and he said, “Too bad. I don’t believe in nonparametrics, and I don’t believe in tests.”

Arthur Lewbel (@lewbel) 's Twitter Profile Photo

Conservative orthodoxy was that Russia behaved for decades because Reagan did exactly the opposite of what Trump now advocates. They called Reagan a hero because he spent billions on arms for years until Russia cried uncle. Projecting strength instead of advocating surrender.

Giovanni Mellace (@giomellace) 's Twitter Profile Photo

🎉 Excited to share that our paper "Limited Monotonicity and the Combined Compliers LATE" (with @nadjavanthof and Arthur Lewbel ) has been accepted for publication in the Review of Economics and Statistics! 📄 fmwww.bc.edu/EC-P/wp1059.pdf

Arthur Lewbel (@lewbel) 's Twitter Profile Photo

Regardless of who's side you're on, every threat that Trump and Musk make is more proof that, in the USA, individual billionaires have too much power, and the president has too much power.