Morgan C. Williams, Jr.

I’m not sure what one could possibly learn from what amounts to a messy interrupted time series lacking a clear counterfactual. Wouldn’t be surprised if you found something similar among other (“comparable”) cities that didn’t experience this sort of deployment.

Vital City | State Gun Laws Matter In our federalist nation, regulation in 50 capitals makes a huge difference.

Check out our latest @vitalcitynyc.bsky.social piece on the role of states in regulating the proliferation of guns throughout the U.S.

www.vitalcitynyc.org/articles/sta...

Mayor's Fate Is Intertwined With Head of Teachers' Union (Published 2004)

www.nytimes.com/2004/01/26/n...

WSJ editorial page is wild these past few days

To be fair though John, many government workers, often through their unions, articulate similar messages to political candidates all the time (e.g., teachers).

This administration has all but abandoned a decades-long embracement of community oriented policing throughout the U.S. without any evidence or strategic planning to show for it.

A serious public safety agenda should be grounded in evidence-based policy.

As I told the NYT, the recent deployment of the National Guard to select Democratic cities has been criticized for many incredibly valid reasons—including the fact that they are not a substitute for municipal police.

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!)