Arpit Gupta (@arpitrage) / X

Arpit Gupta

65.7K posts

Arpit Gupta

@arpitrage

Associate Professor of Finance, @NYUStern. Finance/Real Estate/Urban newsletter: arpitrage.substack.com.

Manhattan, NY

arpitgupta.info

Joined September 2015

Pinned
Arpit Gupta
@arpitrage
Feb 2
I'm teaching a new course at Stern on AI in Finance and opening it up! Syllabus/slides on Github: github.com/arpitrage/ai-i… Weekly summaries on Substack arpitrage.substack.com/p/1-three-rule… First post is on Amdahl's Law, Jevons' Paradox, and why finance was slow to learn the bitter lesson
190K
Arpit Gupta
@arpitrage
Sep 8, 2023
You love to see it
1.8M
Arpit Gupta
@arpitrage
Feb 3, 2023
We did it everyone! Credit card debt is right back on trend.
2.2M
Arpit Gupta
@arpitrage
Feb 15, 2025
My sense is economists still view this as a bit of a white elephant project, and haven’t updated on how amazing this is
JR Urbane Network
@JRUrbaneNetwork
Feb 15, 2025
Wild that throughout 2024 high speed trains in China carried 3.27 billion passengers. That's a daily ridership of almost 10 million people per day, on high speed trains alone.
00:00
660K
Arpit Gupta
@arpitrage
Jun 3, 2024
France seems to be crushing it: • Builds housing • Builds transit (Anglo country difficulty level: impossible) • Leading Europe esp on defense • Green: nuclear, bikes etc • High birth rates in declining world; Paris seems like highest birth rate large metro
3.4M
Arpit Gupta
@arpitrage
Jul 14, 2025
Replying to @AlecStapp
I like it, but as an alternative I’m okay with keeping the old one green - and building a new bronze one every 250 years until the harbor is littered with them
269K
Arpit Gupta
@arpitrage
Sep 13, 2022
This is quite the wikipedia page en.m.wikipedia.org/wiki/2022_Russ…
Arpit Gupta
@arpitrage
Sep 24, 2023
Senator and representative salaries have been stuck at $174k/yr since 2009, declining something like 40% in real terms. Very unpopular, but not paying government officials means only rich people do the job. Better to pay well and punish bribing.
758K
Arpit Gupta
@arpitrage
May 7, 2025
595K
Arpit Gupta
@arpitrage
Dec 19, 2022
At some point, after they keep succeeding, the rational Bayesian has to concede these are probable missions
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513K
Arpit Gupta
@arpitrage
Oct 19, 2025
Replying to @JBSDC
Wow, they’re taking this No Kings thing pretty seriously
88K
Arpit Gupta
@arpitrage
Jul 8, 2025
Threads is doing a lot better than I thought?
532K
Arpit Gupta
@arpitrage
Sep 7, 2025
AI adoption actually falling now for many firms
4.3M
Arpit Gupta
@arpitrage
May 29, 2022
This WSJ story about the crypto crash is a good time to revisit Matt Levine's favored securities regulation regime: wsj.com/articles/terra…