iiinova — where your digital self keeps evolving

Daniel Mangrum @danielmangrum.com · 16/08/2026

Judging by the rattling of our windows, I cannot imagine the turbulence on this YOLO flight coming into Maui right now…

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Daniel Mangrum @danielmangrum.com · 07/07/2026

You ever see a movie trailer where like every character is played by an A-lister?

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Daniel Mangrum @danielmangrum.com · 01/07/2026

Updated version of this paper dropping soon!

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Daniel Mangrum @danielmangrum.com · 13/06/2026

It hasn’t even been 24 hours and I’m fiending for a fix…

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Daniel Mangrum @danielmangrum.com · 10/06/2026

So… I suppose this is life with Fable 5?

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Daniel Mangrum @danielmangrum.com · 04/06/2026

Wading into the fourth Dungeon Crawler Carl book wondering what exactly is wrong with me…

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New York Fed @newyorkfed.org · 12/05/2026

In today’s post, the authors share that our latest Quarterly Report on Household Debt and Credit finds that while student loan balances remained unchanged in Q1 2026, the share of student loan balances past due increased, neared pre-pandemic levels at just over 10%. nyfed.org/433SNF2

libertystreeteconomics.newyorkfed.org

Federal Student Loan Defaults Return After Pandemic Pause - Liberty Street Economics

A look at federal student loan default rates and which borrowers have defaulted on their loans over the past two quarters, exploring credit implications.

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Daniel Mangrum @danielmangrum.com · 06/05/2026

Come for the gambling, stick around for the spatial spillover bias with TWFE in a staggered difference-in-differences setting.

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New York Fed @newyorkfed.org · 01/05/2026

Pssst. It's us. The New York Fed is here on Bluesky. Make your way to the front of the line to become one of our earliest followers. And feel free to repost! It's not really a secret!

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Daniel Mangrum @danielmangrum.com · 28/04/2026

Issues with spatial spillovers in staggered DD designs: Exhibit A

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Daniel Mangrum @danielmangrum.com · 17/04/2026

I’m trying to imagine the tote bag/coffee mug/hoodie you get for a donation of that size...

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Daniel Mangrum @danielmangrum.com · 16/04/2026

My slides are about to be **poppin’**

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Daniel Mangrum @danielmangrum.com · 18/03/2026

Wheels up soon to #AEFP2026. I’ll be chairing a session in the first block tomorrow and presenting in the second. If you’re interested in higher ed finance, I’ll see you at both!

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Daniel Mangrum @danielmangrum.com · 17/03/2026

Underrated massive improvement from LLMs on research productivity? Documentation! Everything of mine is vastly more organized now. Within and across projects and workflows. Maybe that’s just a tell of how bad it was for me before but a huge improvement to have organized digital headspace.

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Daniel Mangrum @danielmangrum.com · 26/02/2026

🧵 Jake Goss and I have a new paper where we study how legalized mobile sports betting affects consumer credit and how betting spills across state lines into places where it’s still illegal. newyorkfed.org/research/staff_reports/sr1184

newyorkfed.org

Staff Reports

Technical working papers

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Daniel Mangrum @danielmangrum.com · 26/02/2026

“Create a baby boom with this one simple trick!”

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Daniel Mangrum @danielmangrum.com · 15/02/2026

I previously thought that everyone was turning hyper productive using Claude Code but then I read the quotes and replies to this and apparently that’s not the case.

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Carly Urban @carlyurban.bsky.social · 10/02/2026

New research alert! Are smartphones changing knowledge measures on surveys? tl;dr YES! This is work with my awesome coauthors Olivia Valdes and Jeremy Burke--probably one of the most fun papers I've been a part of.

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Daniel Mangrum @danielmangrum.com · 08/02/2026

Bad Bunny is a born US citizen. Hope this helps.

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Daniel Mangrum @danielmangrum.com · 31/12/2025

Just by the skin of my teeth this year.

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Daniel Mangrum @danielmangrum.com · 21/11/2025

Starting to worry a bit about the last 2 minutes of my flight…

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The New York Times @nytimes.com · 07/10/2025

"Buy Now, Pay Later" apps like Affirm, Klarna and Afterpay have built a delirious new culture of consumption — and trapped users in a vortex of debt.

nyti.ms

Klarna, Affirm, Afterpay: How ‘Buy Now Pay Later’ Built a New Culture of Consumption

‘Buy Now, Pay Later’ has built a delirious new culture of consumption — and trapped users in a vortex of debt.

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George Pearkes @peark.es · 07/10/2025

Very cool new paper from @danielmangrum.com and others at the NY Fed investigating BNPL. Conclusion: BNPLs are negatively-selected to consumers with worth credit, meaning the space is generally expanding credit with its growth. www.newyorkfed.org/medialibrary...

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Daniel Mangrum @danielmangrum.com · 09/06/2025

Hands down best example of AI enhanced productivity. Shoutout to peach puff

ChatGPT output listing 25 RGB color values

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Daniel Mangrum @danielmangrum.com · 15/05/2025

A few student loan stats. First 4 from our new blog post, last 2 from ED. 1. Nearly 1 in 4 student loan borrowers with a payment due was past due at the end of the first quarter libertystreeteconomics.newyorkfed.org/2025/05/stud...

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Daniel Mangrum @danielmangrum.com · 27/03/2025

We have two new blog posts based on our (typically) annual Student Loan Update. The first one documents how the pandemic upended many trends with student loan balances, repayment, and delinquency. We also discuss whether we think those trends will revert now that pandemic supports have ended.

libertystreeteconomics.newyorkfed.org

Student Loan Balance and Repayment Trends Since the Pandemic Disruption - Liberty Street Economics

A look at how the COVID-19 pandemic and its subsequent policy responses disrupted long-term trends underlying U.S. student loans.

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Daniel Mangrum @danielmangrum.com · 17/03/2025

Imagine telling your 10-year-ago self that we might have found the cure for cancer and just decided… “Nah”

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Daniel Mangrum @danielmangrum.com · 14/03/2025

They’ve also deleted the page dedicated to the 761st Tank Battalion (my grandfather’s WWII unit) which was the first all black tank battalion. Archive: web.archive.org/web/20240625... Page was here: www.army.mil/blackamerica...

web.archive.org

Black-Americans | The United States Army

U.S. Army Heritage Black American Microsite | The United States Army

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Daniel Mangrum @danielmangrum.com · 11/03/2025

Anyone up for a beer this week at #AEFP in DC?

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Daniel Mangrum @danielmangrum.com · 21/02/2025

Your outie submits all of his referee reports on time and offers helpful feedback, never asking the author to cite his own work.

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Daniel Mangrum @danielmangrum.com · 08/02/2025

And this is why we winsorize.

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Daniel Mangrum @danielmangrum.com · 02/02/2025

Trade is supposed to exist to improve both parties. Shortsighted moves like this just drive both into the ground. Luka and LeBron are both ball dominant and this leaves the Lakers with no bigs. Dallas just lost the centerpiece to the future of their franchise for an oft-injured 32 year old.

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Daniel Mangrum @danielmangrum.com · 11/01/2025

Anecdote from my spin instructor this morning: “What do yall think about this congestion pricing? At first, I was pissed. Paying $9 just to go through the city? But I’ll tell you what. I had to go from Brooklyn into Jersey the other day and normally that would’ve taken an hour and a half…

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Daniel Mangrum @danielmangrum.com · 05/01/2025

Happy Congestion Pricing Day to all who celebrate

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Daniel Mangrum @danielmangrum.com · 20/12/2024

NBA might need a mercy rule…

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Second Ave. Sagas @2avesag.as · 10/12/2024

Post-COVID ridership record: The subways recorded 4,374,300 paid riders on Wednesday, December 4. That is a new pandemic era high and 82% of the pre-pandemic peak.

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Daniel Mangrum @danielmangrum.com · 09/12/2024

An election result fit for even the finest of bandwidths.

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Daniel Mangrum @danielmangrum.com · 08/12/2024

Ja Morant really just did that🔥

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AEA Information @aeainformation.bsky.social · 05/12/2024

The AEA Summer Fellows Program application portal is now open. #econsky aeaweb.org/about-aea/co...

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