Geronimo Bejarano

@BrownHSPP PhD student | @PDSoros Fellow l @UTHealthSPH MPH | Interested in the financialization of Medicare/Medicare Advantage. 🇨🇴

[Geronimo Bejarano @gero5]

I’m in today’s New York Times! Honored to have been selected as a @PDSoros Fellow out of the nearly 2,400 applicants. I’ve had the pleasure of having incredible help from so many people and there’s some specific people I would like to thank 1/4

[Adrianna McIntyre (@adrianna.bsky.social) @onceuponA]

Every time I open this report, I find a new methodological choice to marvel at.

If your model assumes sunshine and rainbows, your result will be sunshine and rainbows.

[Florian Ederer @florianederer]

I find the Paris Saint-Germain construct, controlled by Qatar's sovereign wealth fund, deeply unsympathetic and problematic.

And yet, unlike Arsenal, these players play magnificent football. It is a joy to watch.

Can you separate art from the artist?

[Pedro H. C. Sant'Anna @pedrohcgs]

Our paper “Difference-in-Differences Designs: A Practitioner’s Guide” is now published in the Journal of Economic Literature. It took us a while but we are happy!

We put together a lot of material to make the paper useful in practice: https://t.co/30TbAgihlz

Hope you like!

[Geronimo Bejarano @gero5]

@friendchristoph I see now how you got 18%. But yes, I’d argue that selling 20% on first day 2 months before the event day and surpassing all records including Taylor Swift train tickets bodes well for them having priced it accurately to demand.

[Paul E Williams @PEWilliams_]

The time has come to raise the housing investment level in this country, just as we did in the 1960s and 1980s.

We have a new report out this morning laying out just how high housing production numbers need to go—and for how many years—to dig us out of the shortage.

[Victoria Marone @VictoriaMarone_]

Hiring a predoc (start date in summer 2026) with @cbchodgson to come work with us at Yale on exciting projects at the intersection of IO and health economics. Information and application linked below!

https://t.co/INIT2dVbkG

[Access Bad Bunny @AccessBadBunny]

ALL THE LATIN AMERICAN COUNTRIES BEING MENTIONED BY BAD BUNNY IN THE HALFTIME SHOW. #SuperBowl

[Aaron Rupar @atrupar]

loved every second of Bad Bunny. That message of inclusion and a celebration of cultures like Puerto Rico’s is just what America needs right now. Plus, his music just gets you in motion. 10/10

[Geronimo Bejarano @gero5]

Bad Bunny. That was what this country needed in its biggest stage.

[shreya @shreyabasu003]

Whenever I meet people who have lived along the Northeast Corridor their whole lives I’m like you don’t know what it’s like out there. It’s bad

[Alec MacGillis @AlecMacGillis]

To put the horror at Brown in some additional context: Providence is exceedingly unused to gun violence. It is a city of almost 200,000 people with only *two* homicides this entire year, until tonight, down from 11 last year.

[Peter Hull @instrumenthull]

Fuck. You. Ghouls.

[Geronimo Bejarano @gero5]

🇨🇴🇨🇴🇨🇴🇨🇴🇨🇴

[Favian Renkel @FavianRenkel]

For 2026 FIFA World Cup Tickets: The most interest in tickets comes from the three host nations, which lead the way, followed by Colombia, England, Ecuador, Brazil, Argentina, Scotland, Germany, Australia, France, and Panama.

#FIFA #FIFAWorldCup #WorldCup #FIFAWorldCup2026

[Geronimo Bejarano @gero5]

@florianederer @cesquivea @MiguelDelaney FIFA could have charged more compared to previous world cups to gain the profits that the secondary market had while adding a no-resell (or as you suggested a only sell back for/below face value to fifa clause) which would eliminate scalpers from the lottery

[Geronimo Bejarano @gero5]

@cesquivea @florianederer @MiguelDelaney Agreed, my willingness to pay for watching a Colombia World Cup game with my dad is only constrained by my ability to pay.

[Geronimo Bejarano @gero5]

@cesquivea @florianederer @MiguelDelaney Agreed. I will say I wish there was a price for those that won’t resell. Almost like a no refund clause. If I’m lucky to get any of the Colombia group stage games in lottery it does not matter what the secondary market gets to, I won’t sell.

[Geronimo Bejarano @gero5]

@florianederer @cesquivea @MiguelDelaney While I would have been fine with this. I will say as a Colombian living in the U.S., I knew ticket prices were going to be insane (even the beanpot which is college hockey goes for $100+ here in Boston) I purposely didn’t attend friendlies to save up for WC prices. 🤷🏽‍♂️

[Peter Hull @instrumenthull]

Paul G-P (@paulgp), Michal Kolesár, and I have a new guide to leniency designs (aka judge/examiner IVs), prepared for the JEP

The bottom line? Keep calm and UJIVE on!

[Dean Li @deanxinli]

I'm thrilled to see my work with Amy Finkelstein and Matthew Gentzkow coming out in @QJEHarvard! I've learned a lot from reading paper threads, and it's exciting to be able to contribute one of my own

A quick summary of our work studying the opioid crisis (1/12)