Associate Professor in Finance at Iowa. I write about insurance markets and tweet about soccer. Opinions are those of some defunct economist.
Iowa City
Joined August 2023
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This is me!
Does collateral affect consumer borrowing? Collier, Ellis, & Keys (2025) examine US disaster loans, which only require collateral for loans above a threshold (e.g., $25K). Collateral requirements reduce credit demand but also default rates. econometricsociety.org/publi…
Cameron Ellis retweeted
Fun fact: in 2020 Florida Republicans paid (illegally) a man with the same last name as the Democrat incumbent to run in an effort to confuse voters and they actually succeeded. The Democrat lost by 32 votes and the sham candidate received 6,000 votes. Election was not overturned.
Cameron Ellis retweeted
The Iowa Board of Regents has selected Carson Holloway as the new director of the Center for Intellectual Freedom at the University of Iowa.
cbs2iowa.com/news/local/iowa…
Cameron Ellis retweeted
Q: If it wasn't you, then who gave the order for Starlink to go down in Ukraine?
TRUMP: I don't know
Cameron Ellis retweeted
Today @GoogleResearch is launching Deep Review — an agentic system designed to stress-test manuscripts, design docs, and complex proposals before submission or publication. After pilot partnerships analyzing over 15,000 research papers, we’re making Deep Review globally accessible to help researchers, engineers, and professionals bring structured critique to their daily workflows.
Cameron Ellis retweeted
Do supply constraints explain housing quantity & price growth across cities?
New piece claims that once you population-weight the estimates (i.e. more weight on big cities) & code the measures as continuous variables (rather than categorical), supply constraints clearly matter.
.@aarmlovi @KAErdmann @arpitrage @kingofthecoastt have you seen this recent paper dallasfed.org/research/paper…?
"Mathematicians did not ask for this work to be done" is such a strange thing to say about AI answering a bunch of *famously open questions*
This quoted post is unavailable.
Cameron Ellis retweeted
Top 8% in the country. Tippie is No. 21 among public business schools and the highest-ranked business school in Iowa 📈
ALT Photo of students walking in the courtyard of the Henry B. Tippie College of Business.
If it is going insolvent, doesn't that mean current retirees *didn't* pay enough into the system and thus haven't earned the benefits they are receiving?
Cameron Ellis retweeted
they try so hard to dehumanize her and make her out to be this evil, despicable person. meanwhile? she’s watching the football game from the children’s hospital with all the kids who are sick. because THAT is who caitlin clark is. proud as ever, 22.💛🖤
Cameron Ellis retweeted
I recently asked ChatGPT to improve the efficiency of some simulations from a few years ago. To my amazement, its code ran in a few seconds instead of 3 hours.
It turns out it went into the GitHub repository, downloaded my final results, and used it as a starting guess in the optimization.
I then tried running it on a new set of parameters. It’s been 15 hours.
Cameron Ellis retweeted
relatedly I would say most economic theory suffers from "The Arrow Problem"
Cameron Ellis retweeted
FOR THE FIRST TIME IN 20 YEARS WE ARE HEADED TO IOWA CITY!
After a dramatic win last night, we couldn't miss @HawkeyeFootball's showdown with Ohio State on Saturday 👏
See you there📍
Cameron Ellis retweeted
Playing Iowa's gotta the be the worst thing ever, they don't do anything for 54 minutes and suddenly you're losing
