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Reposted by Jim Flynn

Miami University Economics @miamiecon.bsky.social · 12d

Our next brown bag seminar will be Professor Jim Flynn (@jimflynn9.bsky.social ) presenting , "Subscriptions to Prescriptions: Lessons from Louisiana’s Effort to Eliminate Hepatitis C."

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Jim Flynn @jimflynn9.bsky.social · Sep 8

“The median student is willing to pay up to $2,617 (12.5%) more to attend a college where the share of students with opposing political views is 10 percentage points lower”

Very cool new WP from @riacton.bsky.social and coauthors!

Riley Acton @riacton.bsky.social · Sep 8

🚨 New working paper alert! 🚨 #econsky

Emily Cook, Paola Ugalde, and I are thrilled to share "Political Views and College Choices in a Polarized America" — now out with both @iza.org and @annenberginstitute.bsky.social EdWorkingPapers

www.iza.org/publications...

edworkingpapers.com/ai25-1280

Political Views and College Choices in a Polarized America

Riley Acton
Miami University & IZA

Emily Cook
Texas A&M University & CESifo

Paola Ugalde A.
Louisiana State University

We examine the role of students’ political views in shaping college enrollment decisions in the United States. We hypothesize that students derive utility from attending institutions aligned with their political identities, which
could reinforce demographic and regional disparities in educational attainment and reduce ideological diversity on campuses. Using four decades of survey data on college freshmen, we document increasing political
polarization in colleges' student bodies, which is not fully explained by sorting along demographic, socioeconomic, or academic lines. To further explore these patterns, we conduct a series of survey-based choice experiments that quantify the value students place on political alignment relative to factors such as cost and proximity. We find that both liberal and conservative students prefer institutions with more like-minded peers and, especially, with fewer students from the opposite side of the political spectrum. The median student is willing to pay up to $2,617 (12.5%) more to attend a college where the share of students with opposing political views is 10 percentage points lower, suggesting that political identity plays a meaningful role in the college choice process.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Same! That’s where the idea came from. Fortunately my high school soccer coach was also my first block psychology teacher and he was in just as bad of shape as I was 🤷‍♂️

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Happy to help👍

Austin Slaughter @austinslaughter.bsky.social · Aug 18

I can now say my hatred of sporting events ending after midnight on the east coast is data-driven

Jim Flynn @jimflynn9.bsky.social · Aug 18

🚨🚨🚨New working paper 🚨🚨🚨

We find that sleep loss due to late-night sports watching led to a significant increase in fatal car crashes in the US during the 2002 World Cup.

A 🧵... #EconSky #EconTwitter

www.iza.org/publications...

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Awesome, thank you!

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Reposted by Jim Flynn

Miami University Economics @miamiecon.bsky.social · Aug 18

Be sure to check out some great work from a few Miami Eco faculty: Professor Jim Flynn (@jimflynn9.bsky.social‬) and Professor Peter Nencka (@peternka.bsky.social‬) along with new Eco alum: Noah Meyers-Richter!

Riley Acton @riacton.bsky.social · Aug 18

New work by @miamiecon.bsky.social colleagues @jimflynn9.bsky.social @peternka.bsky.social and our recently graduated student Noah! ⚽️

Jim Flynn @jimflynn9.bsky.social · Aug 18

🚨🚨🚨New working paper 🚨🚨🚨

We find that sleep loss due to late-night sports watching led to a significant increase in fatal car crashes in the US during the 2002 World Cup.

A 🧵... #EconSky #EconTwitter

www.iza.org/publications...

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Reposted by Jim Flynn

Riley Acton @riacton.bsky.social · Aug 18

New work by @miamiecon.bsky.social colleagues @jimflynn9.bsky.social @peternka.bsky.social and our recently graduated student Noah! ⚽️

Jim Flynn @jimflynn9.bsky.social · Aug 18

🚨🚨🚨New working paper 🚨🚨🚨

We find that sleep loss due to late-night sports watching led to a significant increase in fatal car crashes in the US during the 2002 World Cup.

A 🧵... #EconSky #EconTwitter

www.iza.org/publications...

Soccer’s Record on the Road: The Effect of Late-Night Sporting Events on Fatal Car Crashes

Sleep deprivation imposes significant public health and economic burdens. While researchers studying events like daylight saving time have quantified...

www.iza.org

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Reposted by Jim Flynn

Peter Nencka 📊 @peternka.bsky.social · Aug 18

excited to help push Noah's thesis forward into this new working paper! a Miami tradition! (send us your students who could benefit from an MA degree!)

Jim Flynn @jimflynn9.bsky.social · Aug 18

🚨🚨🚨New working paper 🚨🚨🚨

We find that sleep loss due to late-night sports watching led to a significant increase in fatal car crashes in the US during the 2002 World Cup.

A 🧵... #EconSky #EconTwitter

www.iza.org/publications...

Soccer’s Record on the Road: The Effect of Late-Night Sporting Events on Fatal Car Crashes

Sleep deprivation imposes significant public health and economic burdens. While researchers studying events like daylight saving time have quantified...

www.iza.org

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Jim Flynn @jimflynn9.bsky.social · Aug 18

This paper is joint work with @peternka.bsky.social and our outstanding former grad student, Noah Meyers-Richter. This project was originally Noah's master's thesis, which he just defended in May! We welcome any comments you may have!

Jim Flynn @jimflynn9.bsky.social · Aug 18

Our findings have broader implications for understanding the cost of sleep loss, especially when it is voluntary and recreation-based. Our results suggest that increased policing around late-night events or public service announcements during games may mitigate these harms.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

We estimate that late-night World Cup matches were associated with an increase of 28.8 total deaths on the days following German matches. Using the 2024 DOT estimate of the Value of a Statistical Life, this represents a cost of $394.6 million.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

We run a placebo where we repeat our analysis using the 2006 World Cup in Germany, where all games took place during the day for American fans. We find no effect, suggesting that our main results are driven by sleep loss and not the World Cup matches themselves.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Additionally, we show that our results are not driven by crashes involving alcohol or bad weather, and are driven by crashes involving 20-60-year-old males without children in the car, consistent with World Cup-viewing demographics.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

This table displays our main estimates on PUMAs with 30, 40, and 50% German heritage, for all German games and then “big” German games. This demonstrates that there is a dose-response, with more heavily German PUMAs displaying a larger increase.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

There are spikes in fatal accidents in the high-German PUMAs on five of the seven World Cup matchdays, including the opening match and each of the “knockout round” matches, which we define as “big” games.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

This graph displays daily rates of fatal accidents for US PUMAs with >50% German heritage compared to PUMAs with <30 German heritage during the 2002 World Cup. German matchdays are marked with a vertical line.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Second, Germany has by far the largest number of Americans who trace their ancestry to a foreign country. This graph displays heritage from major countries involved in the 2002 World Cup from the 2000 Census. Germany is the only one who reached the semifinals of the tournament.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Why Germany? Two reasons. First, Germany had a very successful tournament, making it all the way to the final. This means that they played the maximum number of games, and played in the games with the highest television ratings.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

We track fatal accidents in areas with large German populations on days when the German national team played early morning games. Areas with greater than 30% German heritage experienced increases in fatal car accidents of 35% relative to control areas.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Because the tournament took place in Korea/Japan, matches occurred during normal sleeping hours for Americans. This meant that devoted fans had to sacrifice substantial amounts of sleep to follow their team throughout the tournament.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

Estimating the causal impact of sleep loss is challenging because sleep is highly correlated with other health behaviors. We use the 2002 Men’s World Cup, which took place in a South Korea/Japan, as a source of exogenous variation in sleep loss for American soccer fans.

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Jim Flynn @jimflynn9.bsky.social · Aug 18

🚨🚨🚨New working paper 🚨🚨🚨

We find that sleep loss due to late-night sports watching led to a significant increase in fatal car crashes in the US during the 2002 World Cup.

A 🧵... #EconSky #EconTwitter

www.iza.org/publications...

Soccer’s Record on the Road: The Effect of Late-Night Sporting Events on Fatal Car Crashes

Sleep deprivation imposes significant public health and economic burdens. While researchers studying events like daylight saving time have quantified...

www.iza.org

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Jim Flynn @jimflynn9.bsky.social · Jul 11

I feel like the correct move here is to tell the AI to mention something super obscure and specific in the referee report and then mention it to the editor in your cover letter?

David H Feldman @dhfeldman.bsky.social · Jul 11

The article highlights the unethical behavior of "researchers" who try to game the review system by inserting invisible instructions to any LLM used in peer review.

It's equally unethical to use AI to review papers you have chosen to referee.

www.nature.com/articles/d41...

Scientists hide messages in papers to game AI peer review

Some studies containing instructions in white text or small font — visible only to machines — will be withdrawn from preprint servers.

www.nature.com

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Reposted by Jim Flynn

Riley Acton @riacton.bsky.social · Jul 1

Great to see my colleague @jimflynn9.bsky.social's work on HepC prescription access & public health outcomes (joint with @bartonwillage.com & my grad school classmate, Bethany Lemont) featured in the @nber.org Digest this morning! www.nber.org/digest/20250...

Prescription Access and Public Health Outcomes

www.nber.org

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