AI agents are transforming digital marketplaces, mediating discovery and transactions between consumers and businesses. The new Magentic Marketplace provides an open-source, extensible simulation environment for studying different agentic market designs: msft.it/6014tyz9q

Today's HotFresh recommended paper is: Yang, A. X., & Teow, J. (2025). Framing affects postdecision preferences through self-preference inferences (and probably not dissonance). Journal of Experimental Psychology: General, 154(2), 574–595. doi.org/10.1037/xge0...

I have an electric toothbrush that pulses every 30 seconds to let you know when to switch to another quadrant of your mouth. Number of times I have stood there obeying it for 2 minutes: 0

Today's HotFresh recommended paper is: Maier, M., Harris, A. J. L., Kellen, D., & Singmann, H. (2025). Decision making under extinction risk. Cognitive Psychology, 159. doi.org/10.1016/j.co...

Today's HotFresh recommended paper is: Duckworth et al (2025). A national megastudy shows that email nudges to elementary school teachers boost student math achievement, particularly when personalized. PNAS, 122(13), e2418616122. doi.org/10.1073/pnas...

Quick update from Peru The Incas somehow shaped rocks to have flat faces and precise angles so they fit together with no gaps. The top of the wall was reconstructed later and has big gaps. Some things get worse as time goes on.

Today's HotFresh recommended paper is: Naborn, J., & Bogard, J. E. (2025). EXPRESS: The Pick-the-Winner-Picker Heuristic: Preference for Categorically Correct Forecasts. Journal of Marketing Research. doi.org/10.1177/0022...

Today's HotFresh recommended paper is: Szaszi, B., Goldstein, D. G., Soman, D., & Michie, S. (2025). Generalizability of choice architecture interventions. Nature Reviews Psychology, 4(8), 518–529. doi.org/10.1038/s441...

You should apply to do an internship with us! - Make sure you attach a research statement (we don't consider anybody with no statement for interviews) - The application site will probably go down for a day or two on Nov 17, and the link may change jobs.careers.microsoft.com/global/en/jo...

Everywhere I go, the countries look different, but the shopping malls look strikingly similar. This is Lima, Peru.

I was just on the escalator behind a woman in a light pink jacket who was online shopping for a light pink jacket

kids tend to mess up problems like "what's the chance you'll roll at least one 6 if you roll a die 3 times". in this program, the ball rolls right if you roll a 6, left otherwise--so bins 2, 3, 4 are one or more sixes. You can avoid dealing with them by taking 1 minus the no 6s probability (bin 1)

They just killed NHANES. Every US public health student learns about this study. It’s given us all sorts of important knowledge about the health of Americans and they just ended it.

By @rfoucart.bsky.social

What does it mean to say you figured something out by yourself? We benefit from inheriting thousands of years of advances in mathematical notation, tools, and methods. 5,000 years ago nobody on earth would be able to figure out problems that today's schoolchildren can "figure out by themselves."

when kids are trying to understand something they use ai in smarter ways than we give them credit for

According to economist Thomas Schelling, if 2 strangers had to meet in NYC without planning, many would choose the info booth at Grand Central at 12:00 PM on January 1. At 8:38 PM on October 9th it was just me and the info booth guy.

🚨 Postdoctoral Research Economist positions at Microsoft Research New England or New York City 🚨 www.aeaweb.org/joe/listing.... Open to PhDs in econ-related fields (e.g. quant marketing, econ-CS). Seeking those with high collaboration potential with the team: www.microsoft.com/en-us/resear...

Repeating this prediction (that Susan Athey will win the Nobel) until I'm right.

Peanut butter contains no peas, no nuts, and no butter

Everyone thinking about becoming a professor should read this nymag.com/intelligence...

Having a good ol' fashioned Manhattan BBQ

We've all been there... 🫂

Today's date, 9/25/2025, is probably the last date of our lifetime where the month, day, and year are all square numbers 😱 The next time this will happen is on 1/1/2116.

In which I identify all of the countries in Africa

I just overheard a guy saying "I don't love how you worded that." I don't love how he worded that. Should I tell him?

It is fucked up what they did to the headphone jack

I just saw a V train in NYC which is interesting because there is no V train in NYC 🤔

Assistant/Associate Professor in Strategy/Entrepreneurship & AI, Management @ Stony Brook University (posting for a friend) apply.interfolio.com/173991

My family and I are always wondering about why places in the city go out of business. Take Bareburger. Always a line. All the locations. Then it started getting easier to get a table. Then it was mostly empty. Then one by one they closed. Who cannot wonder why? The need for narrative is so strong.

Many years ago I published a comedic essay in McSweeney's that retold the Iran-Contra affair in the style of an 80s teen angst movie. It was full of absurdities like Oliver North being Fawn Hall being a couple. They just got married in real life! www.nytimes.com/2025/09/09/u...

My kid just started at a new school and said "I'm going to need a permutation lock for gym" 👍

Oh. So a donut?

Job alert at Microsoft 🚨 Senior Director, Chief Economist - AI for Good Lab jobs.careers.microsoft.com/global/en/jo...

Restored a metal yardstick today

Was visiting my old neighborhood and came across one of my favorite intersections: West 4th Street and West 11th Street intersecting as if they weren't violating the laws of nature

one of my favorite (both actually and in quotation marks) math answers in the world. Speaking of platonic truths, beautiful theories and whatnot

In @natrevpsychol.nature.com, Team Scientists @szaszibarnabas.bsky.social, @dggoldst.bsky.social & @dilipsoman.bsky.social and Susan Michie argue that improving how we study nudges—through better design, collaboration, and open science—can help us learn when and where they’re most effective.

So tariffs i) decrease your net worth through stock market declines ii) decrease your purchasing power through price increases iii) increase your retirement age because of i and ii

I will not take your survey for a chance at a gift card but if you give me a gift card I will take your survey with some probability

European countries that subtitle rather than dub English-language TV content have better English skills. This paper argues the effect is causal and large: www.ifo.de/DocDL/cesifo...

New paper just dropped: Szaszi, Barnabas, Daniel G. Goldstein, Dilip Soman, Susan Michie. (2025). Generalizability of Choice Architecture Interventions. Nature Reviews Psychology. Thanks to @szaszibarnabas.bsky.social for doing the lion's share! www.nature.com/articles/s44...

Do you have strong programming skills but need research experience doing meaningful & exciting CSS projects before heading off to a top graduate school for computational social science PhD? Apply now to predoc with me, @dggoldst.bsky.social @jakehofman.bsky.social www.microsoft.com/en-us/resear...

This is a terrible outcome. In my research, I've shown the subscription cancellation problem is big The click-to-cancel rule was poised to make meaningful progress on this problem Now we're back to the sludge The result will be less competition, higher prices, and lower quality.

"To understand America today, study the zero-sum mindset." My piece in @theeconomistevents.bsky.social this week on how zero-sum thinking arises and why it matters so much for policy and politics. Based on our research at the Social Economics Lab. www.economist.com/by-invitatio...

The Society for Judgment and Decision Making is pleased to announce that the latest newsletter is ready for download: sjdm.org/newsletters/ This issue contains announcements, conferences, jobs, and a new section entitled HotFresh Research News! www.decisionsciencenews.com?p=7220

move slow and fix things

Fantastic that this will be in Montreal! Congrats to our colleague Su Lin Blodgett!