The Brand You Can Pronounce
Processing fluency is the one idea in Drunk Tank Pink that survived the decade, and it is the author's own. Here is the strongest case for it, and the three parts we cannot stand behind.
Key takeaways
- Processing fluency is how easily information is taken in, and people read that ease as evidence about the world rather than about their own processing.
- Alter and Oppenheimer reported in PNAS in 2006 that fluently named stocks outperformed disfluently named ones in the short term, across a laboratory study and two analyses of real market data.
- Song and Schwarz took the same principle to risk, under the title 'If It's Difficult to Pronounce, It Must Be Risky'.
- Fluency is a property of the reader and the name together, so the instruction to pick a pronounceable name is incomplete without naming the audience.
- We have not been able to find a replication of the stock-name result, which means the most quotable number here rests on one paper.
The usual question about a brand name is whether it sounds good. That is the wrong question, and reframing it is most of the value here. The thing being measured in this research is not a property of the name at all. It is how hard your brain had to work to process it, which is a fact about you and the name together, and it moves judgements that have nothing to do with names.
The case, put as strongly as it can be put
Processing fluency is the ease with which a piece of information is taken in, and the claim is that people read that ease as evidence about the world. Easy to process becomes familiar, safe, true, valuable. Hard to process becomes unfamiliar, risky, doubtful.
Adam Alter and Daniel Oppenheimer tested it somewhere unusually unforgiving. Writing in the Proceedings of the National Academy of Sciences in 2006, they ran three studies on share price movements: one in the laboratory and two analyses of real market data. Fluently named stocks outperformed disfluently named ones in the short term. Their own illustration is that an initial investment of a thousand dollars returned a hundred and twelve dollars more after a single day of trading for a basket of fluently named shares than for a disfluent basket.
Hyunjin Song and Norbert Schwarz took the same principle to risk, in Psychological Science in 2009, under a title that states the finding without needing a summary: "If It's Difficult to Pronounce, It Must Be Risky".
Put those together and the strong version is clear.
The name is part of how the product is judged, and the judgement runs through effort, not aesthetics.
Which is a different claim from the name sounding nice.
Why this one is worth more than its neighbours
Adam Alter's Drunk Tank Pink is the book that brought most of this to a general audience, and a large amount of what is in that book has since fallen over. It leans heavily on social priming, the literature that took the most damage in the replication decade: warmth priming, money priming, the symbol studies.
Fluency is the strand usually described as having held, and we should be careful with that word, because we cannot show it. What we can show is that fluency was not among the findings publicly overturned, which is a weaker claim and a different one. Absence from the casualty list is not the same as replication, and as the final section sets out, we have not found a replication of the central study. The honest framing is that this is the strand of Alter's book that has not been publicly knocked down, and that it is also the strand that is his own work.
It also has a mechanism that does not require anything exotic. Nobody has to be unconsciously influenced by a stray cue. A person meets a word, finds it easy or hard, and misreads that feeling as information about the thing the word refers to. That is a smaller and more robust claim than most of what shares the shelf with it.
The frame shift
Here is where the reframing earns its place, and it cuts against how the finding is normally sold.
Fluency is not in the name. A name is fluent relative to a reader: their language, their reading ability, their familiarity with the sounds, the typeface it is set in, the size of the print, the contrast on the screen. The same word is fluent to one person and effortful to another.
Which means "pick a pronounceable brand name" is only half an instruction, and the half that is missing is "pronounceable to whom". A name that trips easily off an English tongue is not the same name in a market that does not have those sounds. And the research does not tell you where the line falls, because the studies were run on populations who found the fluent items fluent.
There is a measurement version of the same problem. Laura Graf, Stefan Mayer and Jan Landwehr published a paper in the Journal of Consumer Psychology in 2017 on measuring processing fluency, comparing a single-item measure against five items. The existence of that paper, and its heavy citation, tells you that a decade after these findings the field was still arguing about how to measure the central construct. That is not fatal. It is a reason to hold effect sizes loosely.
The parts we cannot stand behind
Three, and we would rather list them than have a reader find them.
The stock result is a one-day effect on a small sum, reported in 2006, and we have not been able to find a replication of it. That is not the same as knowing it failed. It means the most quotable number in this article is sitting on a single paper, and the honest thing is to say so rather than to repeat the hundred and twelve dollars as though it were a settled rate of return.
The risk finding reaches us through its title and its journal. We have read what the paper reports it found. We have not read the paper.
And the commercial extension, from share names and food additives to brands on a shelf, is an inference. Plausible, widely made, and not something either study tested.
Two readings, and we are not going to pretend one is obviously right
The generous reading is that fluency is a genuine, mechanistically sensible effect that has outlasted most of the literature it was published alongside, and that anybody naming a company should make the name easy to say for the people who will be saying it. On the evidence here that is defensible.
The sceptical reading is that we have one finance study nobody appears to have repeated, one risk study, an ongoing argument about how to measure the construct, and a large commercial industry that has already adopted the conclusion. That pattern is familiar, and in this publication it usually precedes a correction.
We lean generous, and we hold it loosely, and we owe you a word about consistency, because this publication has just run a piece on luxury labels that made a rule out of distrusting a field experiment with one procedural weakness and several hundred citations.
The two cases are not symmetrical and here is the difference, which the reader is entitled to weigh rather than take from us. The luxury finding has a published replication that failed. The fluency finding has no published replication either way. A failed replication is evidence. An absence of one is a gap. Treating a gap as though it were a failure would be as sloppy as treating it as though it were a success.
What that leaves is an asymmetry in what we would do with each. We would not repeat the luxury claim. We would repeat this one, with the sentence about the missing replication attached every time.
That is the whole of our position and it is deliberately unsatisfying.
There is a version of this article that opens with the hundred and twelve dollars, runs through the pronounceability result, and closes by telling you to rename your company. It would be more useful and it would be the same article with the last two sections removed. The difference between the two is not what we know. It is what we are willing to leave in.
Sources
Alter, A. L., & Oppenheimer, D. M. (2006). 'Predicting short-term stock fluctuations by using processing fluency.' Proceedings of the National Academy of Sciences, 103(24), 9369-9372. Three studies; a laboratory study and two analyses of naturalistic real-world stock market data; fluently named stocks outperformed disfluently named stocks in the short term, with an initial investment of one thousand US dollars yielding a hundred and twelve dollars more after one day of trading for the fluent basket. Verified at the published record 2026-10-01. doi:10.1073/pnas.0601071103
Song, H., & Schwarz, N. (2009). 'If it's difficult to pronounce, it must be risky.' Psychological Science, 20(2), 135-138. Verified at Crossref 2026-10-01 for authors, year, journal, volume and pages. The abstract was not retrievable and the paper has not been read here; the finding is reported at the level the title states. doi:10.1111/j.1467-9280.2009.02267.x
Graf, L. K. M., Mayer, S., & Landwehr, J. R. (2017). 'Measuring processing fluency: one versus five items.' Journal of Consumer Psychology. Cited as evidence that the field was still arguing about how to measure the central construct a decade on. Verified at the published record 2026-10-01. doi:10.1002/jcpy.1021
Alter, A. (2013). Drunk Tank Pink. Penguin Press. Read in full in this vault, 2026-08-31, with the caution recorded that a large share of the book's research comes from the social-priming literature and much of that did not survive replication.
Kahneman, D. (2011). Thinking, Fast and Slow. Farrar, Straus and Giroux. Cognitive ease as a source of judgments of truth and familiarity. Read in this vault, 2026-09-02.
A note on what is inferred rather than tested: the extension from share names and pronounceability to brands on a shelf is ours, and neither study examined it.