Jeffrey Wooldridge

Here is an updated link to my shared Dropbox. It's mostly for DiD but also has other recent projects. I'm currently cleaning up some of the Stata do files and I'll be posting. I posted the first public version of my nonlinear DiD paper. dropbox.com/sh/zj91darudf2…

My main interaction with a Cantabrigian while walking down the street yesterday: “In this country we walk on the left side.”

I’ve been standing up to billionaires like Betsy DeVos both here in Michigan and across the country. I want to take that fight to Congress—and stand up for families in our community. Let’s build an economy that works for everyone.

One of the most harmful things econometricians can teach students is the plug-in characterization of 2SLS -- without first showing how it is simply an IV estimator with a particular choice of instruments. The plug-in approach often leads to bad habits down the road.

At what point does irrationality transition to mental illness? And can it be self diagnosed?

I love to travel places to attend conferences and give short courses. I feel privileged to be able to do so. Usually, I also feel spoiled — but less so lately, as there seem to be more and more travel mishaps. And reimbursement has somehow gotten harder (or I’m less patient).

Is it worth the many hours it will undoubtedly take me to get refunded from @vueling after my Florence to Barcelona flight was cancelled? Their solution is to book me on a flight that arrives 24 hours after I’d planned. Well, I’d only miss a full day of lecturing.

A happy coincidence that a certain hard rock band was playing the Lucca Music Festival during the CIML 2025 conference. So what is wrong with another sin?

"To understand America today, study the zero-sum mindset." My piece in @TheEconomist this week on how zero-sum thinking arises and why it matters so much for policy and politics. Based on our research at the Social Economics Lab. economist.com/by-invitation/…