Morgan C. Williams, Jr.

Global Stocks Drop, Extending Rout Caused by Trump’s Tariffs A brutal day for markets around the world added to the pain of last week’s market turmoil, with the S&P 500 index nearing a bear market.

So much winning….

www.nytimes.com/2025/04/06/b...

A little metrics humor for the dark times we’re facing at the moment.

Note that while “bias” will get your proposal flagged, “unbiased estimator” still appears to be on the table.

Added more gun researchers to this starter pack who joined BlueSky. Please share and lmk if you’d like to be added! @daniel-semenza.bsky.social @vitalcitynyc.bsky.social @meganranney.bsky.social @sonalirajan.bsky.social @thetrace.org @giffords.org @everytown.bsky.social

go.bsky.app/G9zEmHs

Former BLS commissioner Erica Groshen on how the policy change to Schedule F that Trump & #Project2025 advocate would destroy the credibility of the federal statistical system.

Her comment on LinkedIn
www.linkedin.com/posts/erica-...
...

Well-known Virginia Tech professor dies at 81 Virginia Tech professor and poet, Nikki Giovanni, has died at the age of 81.

Virginia Tech professor and poet, Nikki Giovanni, has died at the age of 81.

Nonetheless, I decided to leave in search of more freedom in terms of both style and content. And that’s all I’m going to say for now. My “so long and thanks for all the fish” column will appear next week. As for future plans, watch this space 2/

Paul Krugman retires as Times columnist | The New York Times Company

And it’s official. I’m immensely grateful to the world’s greatest news organization for giving me a platform all these years, and greatly appreciate the moving sendoff 1/

www.nytco.com/press/paul-k...

Take the win!

Welcome, @marthaolney.bsky.social!! Yes - @riacton.bsky.social has put together two women+ in econ starter packs.

How do firms respond when faced with climate shocks? Tarikua Erda's research examines how firms adjust physical capital investment and entry/exit decisions, providing key evidence to a long-standing puzzle. (Among other interesting projects: www.tarikuaerda.com)

I’m on the #EconJobMarket! I study labor, climate, entrepreneurship & innovation

www.tarikuaerda.com/jmp

My #EconJMP examines how how manufacturing firms respond to flooding. Do flooded firms build back better? Or do they suffer unrecoverable losses that weaken aggregate productivity?

🧵 1/n

“I can take you away from all of this.” - R Studio 😂

ggplot alone will change your life.

We deserve this. #Knicks

The Mysteries of Cities and Economic Growth It’s impossible to think about economic growth without also thinking about cities’ vital role in connecting the world

Ed Glaeser and I wrote about the future of cities for the IMF. Fun topic to think about. www.imf.org/en/Publicati...

Welcome! go.bsky.app/RyKSzcb

Hey #blacksky ‼️ So good to have left the bad place. Someone please share a starter pack!

I had an IV joke, but it’s getting pretty LATE.

Society would be so much better off if more people realized that we do not value their opinions. The costs of opinion dissemination are far too low as anyone can spread misinformation at a moment’s notice. Expertise should mean something.

It’s perfectly fine to “shut up and dribble” sometimes.

Regression is a tool for making comparisons

If you don't know / can't easily explain what comparisons you're trying to make, then you don't understand the regression you're running

Submission: Race and Stratification Working Group, Page 1 of 2 - MyNBERNBER: National Bureau of Economic Research

The Race and Stratification Working Group at NBER will have its annual meeting on Friday, April 4, 2025! Dania Francis, Vicki Bogan, Ellora Derenoncourt and I are organizing the program. Submit your paper before the December 19, 2024 deadline! conference.nber.org/confsubmit/b...

Economists love using linear regression to estimate treatment effects — it turns out that there are perils to this method, but also amazing perks

Come with me in this 🧵 if you want to learn about our now-published paper "Contamination Bias in Linear Regressions!"

1/ (Twitter rerun!)

a group of turkeys are standing in a line with one standing out ALT: a group of turkeys are standing in a line with one standing out

Thanksgiving this year falls on the 28th, and 28 is a perfect number – meaning that it is equal to the sum of its proper divisors (28 = 1 + 2 + 4 + 7 + 14).

So... I hope you have a truly perfect #Thanksgiving!!

Not a Bears fan, but it’s criminal that they didn’t call a TO.

The problem is that some sheds are poorly maintained, attract rodents, and take up parking. I enjoy outdoor dining, but some of those sheds were (are) eyesores.

Crieff Hydro Hotel

Pleased to announce the Fourth Annual Scotland and Northern England Conference in Applied Microeconomics at the Crief Hydro Hotel in Perthshire on 6-8 May 2025!

Our keynote speaker is @ludogazze.bsky.social

More info & submission link at applied-microecon.wp.st-andrews.ac.uk/sane-worksho...

You are clearly the favorite cousin that gets it started for everyone lol

a man is singing into a microphone on stage in a dark room . ALT: a man is singing into a microphone on stage in a dark room .

I guess you could say… Volcker RULES!

Contamination Bias in Linear Regressions -- out today in the AER!

www.dropbox.com/scl/fi/x4bc1...