Kyu Matsuzawa

Applied microeconomist interested in econ of crime & health econ.

[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!

[Jennifer Doleac @jenniferdoleac]

Interested in what my team at @Arnold_Ventures is doing to change the conversation about public safety? Follow our new AV CJ account for updates!

[John B. Holbein @JohnHolbein1]

"The legalization of mobile sports gambling in America was a policy mistake and that the evidence is now clear enough to say so."

[Seyed Mahdi Hosseini @SeyedMH98]

That’s exactly what we find in our paper! Firms that adopt GenAI reduce the number of junior employees, and this effect operates entirely through a decline in hiring rather than increased separations.

Link to draft: https://t.co/yFbBs7an1l

[Jennifer Doleac @jenniferdoleac]

The Criminal Justice team at Arnold Ventures is looking for a pending/recent PhD with strong causal inference skills, for a remote, part-time consulting position.

This is a great opportunity for someone considering a transition from academia to the policy space. You'll learn a lot and meet lots of people!

Deadline to apply: March 15

Please RT!

[Jennifer Doleac @jenniferdoleac]

Call for papers: PhD students and junior scholars working in the economics of crime space - check out this excellent conference in London.

[CHEPS @SDSUCHEPS]

Excited to team up w/ @SdsuEcon for a fabulous Spring’26 Seminar Series ft. C. Sloan, @kteltser, @Viquibarone, @MatthewGudgeon, @serenacanaan, @claudferraz, @kylefbutts, M. Fitzpatrick, @james_m_reeves, @econ_mar, @TaniaMocanu, @tpearson_tweets, @amguoo, @ParagMa_Econ & P. Oliva

[Jennifer Doleac @jenniferdoleac]

I just posted the ViCE seminar schedule for early spring 2026:

[Jennifer Doleac @jenniferdoleac]

Cool job alert:

"Postdoctoral Scholar: Criminal Justice Research Center & PA Department of Corrections"

This is an opportunity to contribute to the fantastic research program at @CorrectionsPA under @kbucklen. They're doing some of the most innovative, rigorous work in the public safety space. And they're looking for someone with causal inference skills to help them do even more.

[John B. Holbein @JohnHolbein1]

We should probably be placing incarcerated people in prisons closest to their homes.

Why?

Assigning individuals to prisons closer to their home reduces recidivism.

Really?

Yep. Being placed close to one's home increases social contacts that appear to reduce reoffending.

[Benjamin Hansen @benconomics]

Dave Hall presenting research with @q_econ on the impacts of drug legalization in Oregon. Prior research has found different estimates using the same methods. We replicate, reconcile and extend prior research. @APPAM_DC

#appam2025

[Emily Leslie @emilycleslie]

New working paper with @JeffDenning, @benconomics, @LarsLefgren & Cody Tuttle:

📄 “Same Crime, Different Time: Disparities in Judicial Outcomes for DWI Offenders.”

We study how similar DWI defendants can face very different sentences. 1/5

[Khoa Vu @KhoaVuUmn]

Since it's the job market season, if you want a signal boost for your JMP post, let me know via DMs and I'd be happy to retweet/quote-tweet.

[Austan Goolsbee @Austan_Goolsbee]

This morning, the @chicagofed introduced new labor market indicators that combine private sector data with official labor statistics to provide a real-time view of hiring, layoffs and other job separations, and an early forecast of the unemployment rate. https://t.co/iln1LpPNAr.

[𝔼𝕣𝕕𝕒𝕝 𝕋𝕖𝕜𝕚𝕟 @Erdal_Tekin_]

The 15th Workshop on the Economics of Risky Behavior, sponsored by @AU_SPA, will be held July 8–9, 2026 in Cagliari, Italy! 🇮🇹
Keynote: Paolo Pinotti (Bocconi University)
Organizers: Erdal Tekin (American University) & Claudio Deiana, Ludovica Giua, Marco Nieddu (University of Cagliari)
📅 Submission deadline: March 6, 2026
📄 Submit here: https://t.co/7QSoekzuG1

[CHEPS @SDSUCHEPS]

CHEPS & @SDSU_ECON welcome @q_econ to our faculty and as new CHEPS Chief of Staff! @YangLiangEcon & Joe Sabia also welcome three Postdoctoral Researchers to the team: @tessie_krishna, @jooyoung__kim, & Nikolaos Prodromidis. Here's to a productive 2025-26 academic year!

[Arnold Ventures @Arnold_Ventures]

Interested in the individual - and household-level financial, social, and behavioral impacts of legalized sports betting – or about how regulation, enforcement, and consumer protections influence these outcomes? Apply for our new ‘Causal Research on the Impacts of Legalized Sports Betting’ #RFP! 

Deadline for LOIs is Monday, Sept. 15.  
Learn more and apply: https://t.co/T5w2rZKFxP

[Jennifer Doleac @jenniferdoleac]

The next ViCE seminar is this Thursday, August 14, at 1pm ET.

Kyu Matsuzawa (@q_econ) will present: "Sports Betting Legalization Amplifies Emotional Cues and Intimate Partner Violence"

[Jennifer Doleac @jenniferdoleac]

The ViCE seminar schedule for early fall 2025 is up! We start back up again next week (Aug 14).

[John B. Holbein @JohnHolbein1]

Legalized sports betting increases intimate partner violence.