Matt Grossmann
@mattgrossmann.bsky.social
Michigan State political scientist & IPPSR Director; Hooked bookstore/cafe Co-owner; Science of Politics Podcast; New book: Polarized by Degrees
Political science
59%
Business
20%
Data center construction is facing much more political opposition. If NIMBYs win, what does that imply for the AI "bubble"? Is it inflated by announcements of financing & builds that won't happen or will slow? Are companies over-announcing, anticipating delays & cancelations?
Political alignment in entrepreneurial teams: Homophily in venture formation and associations with startup success
Research Summary We examine political affiliation's role in venture team formation and success. Using data from Crunchbase and L2 on 1125 US-based startups, we investigate political homophily in tea...
sms.onlinelibrary.wiley.com
Startup teams with similar political views form more frequently, controlling for founders' gender, age, location, & industry. Startups with politically heterogeneous founding teams are more likely to shut down
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sms.onlinelibrary.wiley.com/doi/full/10....
Expressive Responding and the Economy: The Case of Trump’s Return to Office | Journal of Experimental Political Science | Cambridge Core
Expressive Responding and the Economy: The Case of Trump’s Return to Office
www.cambridge.org
Partisans differ in economic perceptions based on who is president, even if you pay them to get correct answers:
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Do Tuition Subsidies Raise Political Participation?
(November 2025) - Civic externalities motivate education expenditures, but estimates of the civic returns to large-scale education subsidies are scarce. We use 16 million financial aid applications an...
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A tuition-free college program increased a receiving student's voter turnout rate by 4–12 percentage points in 2020, also increasing Biden's margin. RD
www.aeaweb.org/articles?id=...
www.aeaweb.org/articles?id=...
Reposted by Scott L. Greer
The Drug Crisis and Voting Behavior | Perspectives on Politics | Cambridge Core
The Drug Crisis and Voting Behavior
www.cambridge.org
Increasing opioid overdose death rates were associated with an increase in Republican votes. surveys show Independents became more likely to support stricter border security & higher spending on law enforcement as drug death rates increased.
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Congressional elections are consistently predicted by generic ballot polls, presidential elections by presidential approval & horse race polls. They incorporate most other information &, beyond that, don't have much influence across each other.
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com/doi/10.1177/...
They also find that the benefits of moderation & candidate quality have declined over time but not gone to zero. And effects are based on vote choice, not differential turnout.
American Journal of Political Science | MPSA Journal | Wiley Online Library
Campaign staff, journalists, and political scientists commonly attribute the poor performances of a party's down-ballot candidates to low-quality or extreme top-of-the-ticket candidates, but empirica...
onlinelibrary.wiley.com
Downballot drag is not strong. voters have a strong capacity to discern differences in quality & ideology across offices & incorporate this information into their vote choice
onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com/doi/full/10....
Reposted by Efrén O. Pérez, Matt Grossmann
Insofar as we might think glue for MAGA is negative views of social groups, there's not much among Republicans here according to the ANES panel. If MAGA took over the GOP and partisans then follow elite views, we'd expect more change in group evals—not much there among white Republicans.
How media incentives stoked the culture war - Niskanen Center
Aakaash Rao and Shakked Noy find that cable news outlets talk more about culture war issues while candidates favor economics.
www.niskanencenter.org
How media incentives stoked the culture war
When cable news talks culture, it mobilizes viewers; went it talks econ, they change the channel. Now voters & candidates exposed to cable prioritize culture
New #ScienceOfPolitics with Aakash Rao & Shakked Noy
www.niskanencenter.org/how-media-in...
When cable news talks culture, it mobilizes viewers; went it talks econ, they change the channel. Now voters & candidates exposed to cable prioritize culture
New #ScienceOfPolitics with Aakash Rao & Shakked Noy
www.niskanencenter.org/how-media-in...
Reposted by Paul Nightingale, Matt Grossmann
Gender disparities in the impact of generative artificial intelligence: Evidence from academia
Abstract. The emergence of generative artificial intelligence (AI) tools such as ChatGPT has substantially increased individuals’ productivity. In this stu
academic.oup.com
After ChatGPT, increase in productivity of male researchers was higher than for female researchers, widening the productivity gap. male researchers use generative AI more & see higher efficiency improvement from its use than female researchers
academic.oup.com/pnasnexus/ar...
academic.oup.com/pnasnexus/ar...
The Racial Politics of Mass Incarceration | Perspectives on Politics | Cambridge Core
The Racial Politics of Mass Incarceration
www.cambridge.org
black politicians voted punitively at the height of concern about crime. Federally mandated redistricting suggests that in the early 1990s, black political representation also had a punitive impact at the state level
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