In The General Theory (1936), John Maynard Keynes described a newspaper contest: readers pick the six prettiest faces from a hundred photos. The prize goes to whoever matches the most popular choice. So you're not choosing who you find prettiest — you're choosing who you think others will find prettiest. And since others are doing the same, you're really guessing who you think others think others will pick. Keynes wrote that some players "practise the fourth, fifth and higher degrees" of reasoning. In markets, he argued, professional investors don't pick assets by fundamental value; they try to anticipate what the crowd will value. Prices become a bet on collective psychology, not a simple reflection of cash flows. The contest is a metaphor for second- and third-order thinking: what do I think? What do I think they think? What do I think they think I think?
The strategic implication is that in many settings — elections, fashion, asset prices, hiring — the "correct" move depends on what others will do. If everyone is one step ahead, the edge goes to those who think one step further — until the process becomes unstable or everyone converges on a focal point. The model explains momentum, bubbles, and the persistence of conventions that have no fundamental anchor. It also warns: when the game is "guess the average," the average can drift far from intrinsic value. The practitioner's question is always: how many steps of "what do they think?" matter here, and where do I sit in that chain?
Experimental "guess 2/3 of the average" games confirm that depth varies: many people pick a number that reflects one or two steps of reasoning; few go to the Nash equilibrium of zero. The winning guess is often in the 20–30 range — the average of a mix of naive and sophisticated players. In markets, the equivalent is that price can sit at a level that is neither fundamental value nor pure chaos but an unstable compromise between contest-players and fundamentalists. When the share of contest-players rises, price drifts from value; when they exit or get wiped out, price reverts. The model doesn't say markets are always wrong; it says the mapping from fundamentals to price runs through expectations of others, and that mapping can be noisy and regime-dependent.
Section 2
How to See It
Look for situations where payoff depends on matching or anticipating the choices of others, and where those others are themselves trying to anticipate. When people openly say "I'm not buying because I like it, I'm buying because others will bid it up," or when consensus forms around a narrative that everyone knows is fragile but no one wants to break first, you're seeing the beauty contest. The diagnostic: is the best move determined by fundamentals, or by your forecast of others' behaviour?
Business
You're seeing Keynesian Beauty Contest when a startup raises at a valuation that both founders and investors know is rich, but everyone expects the next round to be higher so they participate. The "correct" move is to play the momentum — not to value the company on cash flows today. When the game shifts and everyone tries to exit before the rest, the same logic runs in reverse. Hiring and compensation can work the same way: candidates and employers sometimes optimise for "what will look good to the next employer" or "what will signal we're a top shop" rather than fit or productivity.
Technology
You're seeing Keynesian Beauty Contest when tech trends (AI, metaverse, Web3) attract capital and talent because "everyone is betting on it," not because the fundamentals are proven. Roadmaps and feature sets get chosen to match what the market (and investors) think the market wants. The best technology doesn't always win; the technology that enough people expect others to adopt often does. Standards wars and platform battles are beauty contests: the winner is often the one that coordinates expectations, not the one with the best specs.
Investing
You're seeing Keynesian Beauty Contest when asset prices disconnect from discounted cash flows and track momentum, sentiment, or "what the Fed will do" as interpreted by the crowd. Short-term traders explicitly play the contest: they don't need to know true value; they need to know what others will buy or sell. Bubbles form when enough participants believe others will keep buying; they pop when enough believe others will sell. Value investors try to sit out the contest and wait for price to revert to value — but they must survive the period when the contest dominates.
Markets
You're seeing Keynesian Beauty Contest when exchange rates, commodity prices, or volatility spike on news that changes little about long-run fundamentals but a lot about what traders think others will do. Flash crashes and momentum runs are extreme cases: the "correct" move is to anticipate the herd, not to hold through the move. Central bank communication is partly an attempt to anchor the contest — to make "what others think" align with policy goals.
Section 3
How to Use It
Decision filter
"When payoff depends on matching or anticipating others' choices, ask: how many steps of 'what do they think?' matter? Am I playing the contest or betting against it? And what would break the current consensus?"
As a founder
Fundraising, hiring, and positioning often have a beauty-contest element. Investors and candidates are partly judging you on what they think others will think. That doesn't mean you should only optimise for signalling — but ignoring the contest is costly. Shape the narrative and metrics that the "crowd" (investors, press, talent) uses to judge; that raises the chance they converge on you. In standards and platform battles, the goal is to make your option the focal point — the one everyone expects everyone else to pick. When the contest is hot, momentum can be self-reinforcing; when it cools, fundamentals matter more. Know which regime you're in.
As an investor
Markets often price assets on "what the average participant thinks the average will do" rather than on intrinsic value. You can play the contest (momentum, sentiment) or bet against it (value, contrarian). Each has a place. The mistake is to assume the market is always one or the other. In manias, the contest dominates and value strategies underperform until the break. In panics, the contest can overshoot the other way. Position size and horizon should reflect whether you're playing the contest or waiting for it to mean-revert.
As a decision-maker
In any setting where success depends on coordinating with or anticipating others — hiring committees, procurement, political coalitions — the beauty contest is in play. The "best" candidate or option is often the one the group expects the group to choose. You can try to think one step ahead (what will they pick?) or try to shift the focal point (make them pick X). Avoid the trap of believing the outcome reflects "true" merit or value; it often reflects equilibrium expectations. Use that to decode behaviour and to design processes that reduce pure coordination (e.g. blind reviews, independent scoring) when you want fundamentals to dominate.
Common misapplication: Assuming everyone is playing the same depth. In practice, participants differ in how many steps they think. Some anchor on fundamentals; some on one step; some on two or three. The equilibrium can be driven by the marginal player — the one who sets the price or the convention. Overestimating average depth leads to overcomplicated strategy; underestimating it leads to being front-run or left behind.
Second misapplication: Treating the contest as irrational. It's rational to anticipate others when payoff depends on it. The problem isn't reasoning; it's that the equilibrium can be fragile, path-dependent, or far from fundamental value. The model explains why smart people collectively produce bubbles and fads — not because they're dumb, but because the game rewards guessing the crowd.
Section 4
The Mechanism
Section 5
Founders & Leaders in Action
George SorosFounder, Soros Fund Management; author of reflexivity
Soros's reflexivity — the idea that beliefs about markets affect market outcomes — is the beauty contest in motion. He didn't try to value assets in isolation; he tried to anticipate how the crowd would revalue them and how that revaluation would feed back into behaviour. His famous bets (e.g. against the pound) were partly bets on when the contest would break — when enough participants would stop playing "what will others do?" and run for the exit. His writing makes the mechanism explicit: in reflexive settings, the "correct" move is to model the crowd's beliefs and their evolution.
Buffett's line that the market is "a voting machine in the short run and a weighing machine in the long run" is a direct response to the beauty contest. Short run: participants vote on what they think others will value — pure contest. Long run: price tends to reflect fundamental value — the weighing machine. His strategy is to ignore the contest when it pushes price away from value and to "weigh" (value) businesses himself; he waits for the contest to swing back or for the crowd to hand him mispriced assets. He doesn't try to outguess the crowd on a daily basis — he opts out of that game and plays a different one.
Section 6
Visual Explanation
Keynesian beauty contest: your payoff depends on matching the crowd's choice. So you choose based on what you think they will choose — and they choose based on what they think you (and others) will choose. Equilibrium can sit far from 'true' value. Multiple steps of 'what do they think?' determine where price or convention lands.
Section 7
Connected Models
The beauty contest sits at the intersection of game theory, information dynamics, and reflexivity. The models below either formalise the same idea (game theory, Nash equilibrium), describe how beliefs spread (information cascade, bandwagon), or extend to feedback and instability (reflexivity). Tension arises when fundamental value or independent judgment conflicts with playing the crowd.
Reinforces
Game Theory
The beauty contest is a game: each player's best response depends on what others do. Game theory provides the tools — best response, Nash equilibrium, common knowledge — to analyse how many steps of reasoning occur and where the outcome settles. The contest is a canonical example of a game where payoff depends on matching or anticipating the group.
Reinforces
Information Cascade
Information cascades occur when people imitate others' choices because they infer information from those choices — and stop using their own signal. The beauty contest is similar: you choose based on what you expect others to choose, and they do the same. Cascades can lock in a convention or a price that is informationally fragile. Both models explain why crowds can converge on the wrong or unstable outcome.
Tension
Intrinsic vs Market Value
Intrinsic value is what an asset is "worth" on fundamentals; market value is what others will pay. The beauty contest says market value is often a bet on what others will pay — not on intrinsic value. The tension: should you optimise for intrinsic value (weighing machine) or for market value (voting machine)? The answer depends on horizon and whether you're playing the contest or betting against it.
Tension
Circle of Competence
Section 8
One Key Quote
"Professional investment may be likened to those newspaper competitions in which the competitors have to pick out the six prettiest faces from a hundred photographs, the prize being awarded to the competitor whose choice most nearly corresponds to the average preferences of the competitors as a whole; so that each competitor has to pick, not those faces which he himself finds prettiest, but those which he thinks likeliest to catch the fancy of the other competitors, all of whom are looking at the problem from the same point of view."
— John Maynard Keynes, The General Theory of Employment, Interest and Money (1936)
Keynes's point: in such a game, you're not maximising your own preference; you're maximising match with the average. In markets, that means price is not set by fundamental value alone but by what participants think the average participant will value. The practitioner's job is to decide whether to play the contest, how many steps to think, and when the contest will break.
Section 9
Analyst's Take
Faster Than Normal — Editorial View
Many high-stakes decisions are beauty contests. Fundraising, hiring, trend adoption, and short-term asset prices often reward anticipating the crowd. The "best" choice is the one the relevant group expects the group to choose. Ignoring that is costly; over-optimising for it can detach you from fundamentals. The discipline is to recognise when you're in a contest and to choose depth and side (play or opt out) deliberately.
Depth of reasoning varies. Not everyone thinks two or three steps ahead. The equilibrium is driven by the marginal player — the one who sets the price or the convention. In practice, that can be the most naive or the most sophisticated, depending on the setting. Calibrate your strategy to who is actually in the game and how they're playing.
The contest can run away from value. When enough participants believe others will keep buying (or hiring, or adopting), momentum is self-reinforcing. Bubbles and fads are the result. The same logic in reverse produces crashes and stampedes. The strategic move is to know when you're in a reflexive phase and to size risk and horizon accordingly — or to step aside and wait for the weighing machine.
Use it to decode behaviour and design process. When outcomes seem to reflect "what everyone thought everyone would do" rather than "what's best," the contest is at work. You can try to shift the focal point (narrative, standards, signalling) or you can design processes that reduce the contest (independent evaluation, blind review, long-term incentives). Match the tool to the goal.
The contest is rational, not stupid. Participants who anticipate the crowd are playing the game as given. The problem is that the game can produce equilibria that are fragile, path-dependent, or far from fundamental value. Don't conflate "beauty contest" with "irrational"; the model explains how rational, strategic play can still produce bubbles, fads, and coordination on the wrong convention. The fix is often to change the game (e.g. longer horizons, different incentives) rather than to lecture players.
Section 10
Test Yourself
Is this mental model at work here?
Scenario 1
A VC invests in a sector they consider overvalued because they expect other funds to keep investing and valuations to rise for another year.
Scenario 2
A hiring committee picks a candidate who is 'safe' and 'everyone can agree on' over a candidate who scored higher on independent technical assessments.
Scenario 3
A founder chooses a tech stack because it's 'what everyone uses' and will make hiring easier, even though they think another stack fits the product better.
Scenario 4
An investor holds a position through a 40% drawdown because they believe the company's intrinsic value is unchanged and price will eventually reflect it.
Section 11
Top Resources
Keynes's original metaphor is in The General Theory. Game-theoretic treatments of "guess the average" and higher-order beliefs extend the logic. Soros and others apply it to markets via reflexivity. For practitioners, the resources below help move from metaphor to mechanism: when payoff depends on matching or anticipating the crowd, the beauty contest is the right frame. The rest is calibration — how many steps matter, who is in the game, and when the contest will break.
Chapter 12 contains the beauty contest metaphor and Keynes's critique of professional investment as speculation on market psychology. The source of the model.
Doesn't name the contest directly but discusses how people reason about what others think (e.g. in planning fallacy, expert prediction). Complements the game-theoretic view with psychology.
Graham's "Mr. Market" is a metaphor for the voting machine — the crowd that offers prices driven by sentiment. Value investing is the discipline of ignoring the contest when price departs from value.
Staying in your circle of competence means investing in what you understand. The beauty contest rewards anticipating the crowd, which may have little to do with deep understanding of a business. The tension: playing the contest can pull you into areas where you're guessing others' guesses rather than applying competence. Many disciplined investors refuse to play beyond one step — or refuse to play at all.
Leads-to
Reflexivity
Reflexivity is the feedback from beliefs to outcomes: if everyone believes the market will rise, they buy, and the market rises. The beauty contest is the static snapshot — what do they think? Reflexivity is the dynamic: what they think changes what happens, which changes what they think. Asset bubbles and crashes are reflexivity in action; the contest describes the anticipatory logic that drives them.
Leads-to
Bandwagon Effect
The bandwagon effect is the tendency to do something because others are doing it. The beauty contest explains why that can be rational: when payoff depends on matching the crowd, jumping on the bandwagon is the best response. The contest gives the game-theoretic foundation; bandwagon is the observable pattern. Together they explain fads, momentum, and coordination on conventions.
