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Jason Roos

@jmtroos.bsky.social

Assoc Prof of Marketing at Rotterdam School of Management, Erasmus U • Lately: causal inference, econometrics, psychometrics, tomfoolery

335 Followers  |  176 Following  |  171 Posts  |  Joined: 04.09.2023  |  2.2182

Latest posts by jmtroos.bsky.social on Bluesky


I'm not overfull...>>sob<<...YOU'RE overfull

23.06.2025 18:20 — 👍 1    🔁 0    💬 0    📌 0

These are the days of procrastination and progress

23.06.2025 18:16 — 👍 0    🔁 0    💬 1    📌 0

Elrond Halfelven sounds like a real asshole

01.05.2025 17:41 — 👍 0    🔁 0    💬 0    📌 0

You may have just solved a seven-hour-old mystery for me! My best guess was a feral parakeet

23.04.2025 03:49 — 👍 1    🔁 0    💬 1    📌 0

it's easy to think that academia is outdated, worthless etc but the fact that we are consistently the first targets for repression by dicators and wannabe dictators suggests we are still doing something useful and good for free societies despite our best efforts to fucking suck super bad

26.03.2025 12:41 — 👍 128    🔁 31    💬 3    📌 2

Great job everyone, we did it

25.03.2025 13:53 — 👍 2    🔁 0    💬 0    📌 0
Post image Post image

On the way to #Berlin to present at the Digital Economy Workshop @diw.de @bsoeberlin.bsky.social
On the agenda:
``Digitization and Community Participation'' w/@jmtroos.bsky.social, now featuring a new dataset covering 600K+ events, 400K+ individuals in 12K local communities in 2024 (200M+ rows...)

22.03.2025 17:35 — 👍 4    🔁 2    💬 1    📌 1
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20.03.2025 04:29 — 👍 232    🔁 55    💬 26    📌 17

Whisks are 100% Bouba.

18.03.2025 00:51 — 👍 1    🔁 0    💬 1    📌 0

@shire-reckoning.bsky.social hasn't posted in the last day and now I'm worried Sauron found the one ring

11.03.2025 13:49 — 👍 2    🔁 0    💬 0    📌 0
Preview
Neuroforecasting reveals generalizable components of choice Abstract. Accurate forecasts of population-level behavior critically inform institutional choices and public policy. While neuroforecasting research sugges

Our latest paper on #Neuroforecasting is out at @pnasnexus.org (w/ Brian Knutson and Lester Tong)

A short 🧵

tinyurl.com/e4279exp

05.03.2025 08:35 — 👍 5    🔁 2    💬 1    📌 0

I'm checking this every day, great deals on heavy (5+ lbs) ashtrays

06.02.2025 04:39 — 👍 1    🔁 0    💬 0    📌 0

* All authors contributed equally and are listed in order of emotional neediness.

06.02.2025 04:30 — 👍 3    🔁 0    💬 0    📌 0

This is what the Internet was meant for

04.02.2025 17:34 — 👍 4    🔁 0    💬 1    📌 0

Remember that email is a replacement for physical letters, which used to arrive only after spending the better part of a week on a train.

27.01.2025 23:21 — 👍 2    🔁 0    💬 1    📌 0

Same

23.01.2025 14:44 — 👍 1    🔁 0    💬 0    📌 0

For consistency in a decision theoretic framework. I mean, you can define "near" anyway you like, but if you want to make a theoretical argument, you might have a problem.

23.01.2025 06:16 — 👍 0    🔁 0    💬 1    📌 0

A potential problem with the proposal is that "near" takes on different meanings when using the mean (L2, SD) versus median (L1, MAD).

I prefer median when talking about people -- means often describe people who don't exist, medians are less prone to this

23.01.2025 05:45 — 👍 1    🔁 0    💬 1    📌 0

I often find myself arguing for why I do impact-driven research on climate adaptation and sustainable behavior. These projects are often long, messy and with unclear outlets that not always count for career progression in my field.

10.01.2025 04:30 — 👍 1    🔁 1    💬 1    📌 0

Dashes en – em are always good choices

09.01.2025 06:51 — 👍 1    🔁 0    💬 0    📌 0

god “black cow” is such a groove

05.01.2025 02:33 — 👍 551    🔁 5    💬 24    📌 1

Here are the first five sets of slides:

01 Introduction: psantanna.com/DiD/01_Intro...

02 Classical 2x2 setup: psantanna.com/DiD/02_two_b...

03 Clustering issues: psantanna.com/DiD/03_Clust...

04 Functional form: psantanna.com/DiD/04_Funct...

05 Covariates: psantanna.com/DiD/05_Covar...

30.12.2024 05:19 — 👍 732    🔁 181    💬 52    📌 15

Where is Parson Brown during the events of the song? Or better yet—*what* is Parson Brown?

24.12.2024 21:47 — 👍 1    🔁 0    💬 1    📌 0

The area of Andorra is 470 square kilometers (180 square miles). To put it in perspective, the area of San Jose, CA is 180 square miles.

So Andorra is about 2.5 times bigger than Lichtenstein or DC.

Lichtenstein has about 40,000 people, Andorra has about 80,000.

19.12.2024 14:43 — 👍 3    🔁 1    💬 0    📌 0

Do Andorra next

19.12.2024 11:30 — 👍 2    🔁 0    💬 1    📌 0

It's a useful analogy, and highlights how AI gets vilified by virtue of being new. I remember academic scare around Wikipedia. But there are also differences: Wikipedia is in principle traceable back to a source. And did anybody hype Wikipedia as a replacement for creating original works?

16.12.2024 18:33 — 👍 0    🔁 0    💬 0    📌 0

In any case my point was simply that calling the thing that everybody is referring to when they AI "evil" isn't an obviously wacko position to take. I can see where that comes from.

16.12.2024 17:48 — 👍 1    🔁 0    💬 1    📌 0

I think the actual contents of the "public" data is where a lot of the vitriol originates from. I mean, can any foundation model be said with certainty not to contain any unauthorized content? I'm not especially bothered by it, but I also don't create art for a living.

16.12.2024 17:48 — 👍 1    🔁 0    💬 1    📌 0

I don't think they are evil per se, but I can understand why, e.g., an artist whose copyrighted work was ingested into a text or image generator, and then encounters claims that these things can generate original writing or art, why they might reach for "evil" to describe all that.

16.12.2024 17:09 — 👍 1    🔁 0    💬 1    📌 0

Skeletor torments He-Man with powerful intuition about Bayesian reasoning and the nature of information

06.12.2024 06:00 — 👍 2    🔁 0    💬 0    📌 0

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