Trung Phan Profile picture
Mar 4, 2024 13 tweets 6 min read Read on X
Wendy's pricing snafu is a reminder of how hard these fast food chains try to optimize menu design.

McDonald's — which sells to ~1% of the world every day — did a digital menu redesign a few years ago and it boosted sales.

Here are 6 design psychology choices it made: Image
Background: In the mid-2010s, McDonald's sales were lagging. The brand turned it around with help of a multi-year menu & store redesign that:

◻️emphasized simplicity (sped up avg. drive thru time from 400 secs to 350 secs)
◻️highlights signature items (pricier = higher margins) Image
Here was McDonald's challenge: loyal customers love the classics (Big Mac, McChicken)

And spend only 30 secs on the menu (pushing them from defaults to a new items is hard)

But McDonald's sells 2B+ meals a month, so influencing choices for a small % of customers boosts profits. Image
Attention cues

Dynamic menus were the biggest change. While value items are typically static pics, signature items are animated.

Our peripheral vision specializes in detecting motion. Dynamic signature items capture our attention and can end up in our potential choice set.
Decision anchoring

First options are key in decision-making. In a study of buffets, 70% of eaters put one of the first 3 items on the plate.

Signature items are often the 1st thing you see. By highlighting them, they are pushing the higher-margin items into your choice set. Image
Optimized for working memory

Cognitively, humans can hold 5-9 "items" in our working memory at one time (e.g., 7-digit phone numbers).

McDonald's dynamic menus highlight 7-10 items. Naturally, the majority of the menu real estate emphasizes higher-margin items or combos. Image
Price anchoring

Even if *none* of the signature item nudges work, we've been exposed to the priciest items on McDonald's menu.

A subsequent purchase from regular (or value) menu will seem like more of a deal based on the price difference...leading to the perception of value. Image
The power of grouping images

Gestalt principles describe how humans perceive objects and one of them is pattern matching.

McDonald's often groups 3 similar images together of a single product category (usually Signatures) to create a "pattern" that captures our attention. Image
Experience chunking

Inside the restaurant, McDonald's separated the order and waiting lines.

The key here is that our perception of "waiting" is reduced vs. if it was a single line. Thus, our memory of the experience is that the wait "wasn't too long". Image
Sources

Key menu redesign analysis here:

McDonald’s drive-thru news:

Buffet study via The Hustle:

Here’s a 60-second video case study: behavioraleconomics.com/loving-psychol…
cnn.com/2020/11/11/bus…
thehustle.co/the-economics-…

I tried to apply the same design philosophy to the research app.

But my co-founder yelled at me for spending $78,000 on a used McDonald’s drive-thru screen and asked “dude, wtf do we need that for?” (Fair point)Bearly.AI
Semi-related: a lot of fast food logos have the color red in them. Some research — which I have no idea if it’s true — suggests sight of the color can raise blood pressure and stimulate appetites: ion.uwinnipeg.ca/~ssingh5/x/col…
Image
Regarding Wendy’s:

— Said in earnings it wanted to do “dynamic menu”
— This was interpreted as “surge pricing”
— Messaging was meant to be dynamic = discounts and deals
— Got accused of price gouging and exploiting customers
— Walked back the proposal
— So much meme fodder

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More from @TrungTPhan

Jun 8
someone used Veo3 to make Moses as a YouTuber live-streaming the Exodus
accent does change at end: reddit.com/r/ChatGPT/s/bO…Image
On-demand history vids like this in few years with Google Veo very plausible.

I previously wrote on YouTube as greatest athletics learning machine ever…could get souped up: readtrung.com/p/youtube-the-…
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Jun 8
reminder that no “asian guy and stripper” story will ever top Enron Lou Pai’s “asian guy and stripper” story Image
Totally forgot Lou Pai got the stripper pregnant.

If this story was transplanted to 2020s, Pai would probably have been a whale on OnlyFans and gotten got…anyways, I wrote about the economics of OF here: readtrung.com/p/onlyfans-sti…
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Apr 29
Boston Consulting Group (BCG) trained an AI slideshow maker called “Decker” on 900 templates and apparently gotten so popular that “some of its consultants are fretting about job security.” Image
Sorry, called “Deckster”. That excerpt was from this BI piece that also looked at McKinsey and Deloitte AI uses: businessinsider.com/consulting-ai-…

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Feb 4
Norway discovered off-shore oil in 1969. It launched its sovereign wealth fund with $300m in 1996.

It’s since grown 6,000x to $1.8T or $327,000 per Norwegian (5.5m people).

The fund owns 1.5% of all global equities but, most impressively, had a UX designer put a real-time fund value tracker on its website landing page.
Norway’s SWF roughly is 65% equity, 25% bond, 10% real estate/infra (all global).

Unsurprisingly, its largest holding is Apple ($47B, or 1.4% of the entire company).

On a related note, here is my deep dive podcast on Steve Jobs and making of the iPhone: podcasts.apple.com/us/podcast/caf…
Norway spared no expense on its SWF website. Look at that carousel!
Read 4 tweets
Feb 4
never forget that episode of “Nathan For You” when he launched a fire detector product and tried to avoid import tariffs by turning it into a music device
One company that has been very good at navigating international food tariffs/regulations is Trader Joe’s. Built its dairy and wine businesses by finding workarounds.

I explain in this deep dive podcast on Trader Joe’s business history and strategy: podcasts.apple.com/us/podcast/caf…
Nathan’s “Blues” Smoke Detector Instrument lololol:

— “concert quality”
— “pre-tuned to F-sharp”
— “9 battery lets you jam for hours” Image
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Jan 29
wow, found a rare interview of a DeepSeek co-founder talking about his first AI startup exit a few years ago
Jian Yang is my 2nd fave Asian founder who created a food-related product.

The 1st is David Tran, who built Sriracha (great on hot dogs) into a $1B brand using $20k of gold bars he snuck out of Vietnam in milk cans.

I tell the full story in this podcast: podcasts.apple.com/us/podcast/caf…
sold for $15m, what’s your excuse anon? Image
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