Are taller employees actually better?

Look at the last executive team photo your organisation put out - the one on the website, arranged by height like a school photograph nobody admits to arranging by height. Now ask yourself an uncomfortable question: is that lineup a fair reflection of who's actually driving results, or is it a reflection of who the room simply believed was driving results, based on absolutely nothing more than how far their head was from the ceiling? Economists have been quietly answering that question for twenty years, and the answer should make anyone who signs off on pay bands slightly nervous.

Start with the geography, because it turns out to matter more than most employers would guess. A 2023 systematic review pooling 42 studies on height and wages found the effect was smallest in the United States and Australia and considerably larger in parts of Asia and Latin America. One of the studies feeding into that literature, using the Indonesian Family Life Survey, found a 10 cm increase in height was worth a 7.5% wage bump for men - but 13% for women, even after controlling for a long list of productivity measures. So the tidy Western assumption that this is mainly a story about tall men getting ahead doesn't travel well; in some economies the effect is stronger for women, not weaker. For an organisation with people and offices scattered across the world, that regional variation isn't trivia — it means a policy that looks harmless in Sydney might be quietly rewarding a group differently in Manila or Nairobi.

The foundational number in this field, though, still comes from the West. Timothy Judge of the University of Florida and Daniel Cable of UNC Chapel Hill pooled four long-running American and British studies and found every extra inch of height was worth about $789 US a year - call it roughly AU$1,130 - after controlling for gender, age and weight. Someone six feet tall could expect to out-earn someone five-foot-five by around $5,525 US, or about AU$7,900, over a single year, which compounds into six figures across a career. Judge's own conclusion, in his words, was blunt: "Height matters for career success."

A rival camp of economists thinks Judge and Cable are asking the right question but landing on the wrong culprit. Anne Case and Christina Paxson, working from British and American cohort data, found taller children tend to score higher on cognitive tests, and argued that gap in ability - not boardroom charisma, not unconscious bias - explains most of the adult earnings difference. Nobody has definitively settled which camp is right, and it's entirely possible both mechanisms are running at once. What isn't in dispute, across every version of this research, is that the correlation between height and pay is real, sizeable, and stubbornly persistent.

Here's where it gets genuinely awkward for anyone tracking gender pay equity. The Australian Bureau of Statistics has measured the average Australian adult at 175.6cm for men and 161.8cm for women - a gap of roughly 14cm, or five and a half inches. Run the Judge and Cable per-inch figure across that gap alone, purely as illustrative arithmetic, and you land somewhere around AU$6,000 a year. Treat that number with real suspicion: it's back-of-envelope maths, not a finding either study actually produced, and it ignores the messier reality underneath. Judge and Cable's effect held up even after controlling for gender, meaning height isn't simply a proxy for it. Case and Paxson would say cognitive scores are doing most of the work. And the American Psychological Association's own summary of the original research noted that shorter men appeared to cop more workplace height bias than shorter women, which cuts against any clean story about who the system is really punishing.

The defensible conclusion is narrower than "height explains the gender pay gap" — it's that any promotion or reward process quietly rewarding physical stature will, on average, tilt toward men as a group, purely because men are on average taller, regardless of which mechanism turns out to be doing the heavy lifting.

Which is where the heels come in — and the shoulder pads, and the good posture, and everything else that manufactures the appearance of height rather than the fact of it. A 2025 study tracking more than 43,000 MBA graduates over fifteen years found a comparable "beauty premium" running through general appearance: attractive graduates earned roughly 2.4% more — about $2,508 US, or AU$3,600 — than equally qualified peers, rising past 11%, or around AU$7,900, for the most conventionally attractive tenth of the group, who were also 52.4% more likely to land a prestigious role fifteen years out. None of that changes a candidate's actual capability. All of it quietly votes on comp outcomes if the evaluation process leaves it room to.

Which brings us to the part that isn't hypothetical, because Australian regulators have already written the example down for you.

The Attorney-General's Department's own human rights scrutiny guidance uses almost this exact scenario to illustrate indirect discrimination: a requirement for employees to be over six feet tall, with no evidence it's actually justified by the job, is facially neutral but disproportionately excludes women — and that, under Australian anti-discrimination law, is exactly the pattern the Sex Discrimination Act 1984 (Cth) is built to catch.

The ACT Human Rights Commission uses the identical example — a minimum height requirement that happens to make a job unreasonably harder for women or people from particular cultural backgrounds to get — as its go-to illustration of indirect discrimination in the workplace. Across the Tasman, New Zealand's Human Rights Act 1993 runs on the same underlying logic: a rule applied equally to everyone that ends up disadvantaging people on a prohibited ground, including sex, can still be unlawful even without any intention to discriminate.

None of this stops a hiring panel from quietly rating the six-foot-two candidate as having more "executive presence" than the identically qualified five-foot-six one — appearance isn't a protected attribute in its own right anywhere in this region. But regulators have made it very clear that facially neutral physical criteria get scrutinised the moment they map onto a protected characteristic, and the same logic sits underneath equivalent frameworks in South Africa, Singapore and most other Commonwealth jurisdictions, even where the fine print varies.

So what does a sensible employer, wherever in this hemisphere they happen to be headquartered, actually do about all this?

Start by finding where your evaluation process still runs on gut feel — unstructured interviews, subjective calibration sessions, sales credit that leans on "who the client clicked with." That's exactly where the height-and-appearance effect has been shown to do the most damage, especially in sales, client-facing and management roles.

If a role genuinely needs a physical height or reach requirement, write down the actual operational reason and be ready to defend it as objectively justified — not inherited from a job description nobody's revisited since the office still had a fax machine.

Train interview panels and calibration committees on the halo effect specifically, rather than unconscious bias in the abstract. People correct far more effectively for a bias they've been shown the data on than one they've simply been told exists.

And as a genuinely non-policy thought experiment: next time a candidate's video call framing makes them look a head taller than they were at the in-person round, notice whether your impression of them changed along with the camera angle.

Plenty of tall readers will, quite fairly, point out that none of this is their doing, and they're right — nobody chose the dimensions they arrived with. The point isn't to penalise height. It's that if your organisation's evaluation systems are quietly rewarding it anyway, they're doing so on your payroll budget, without anyone's sign-off, and very likely without anyone noticing. There may be a height premium sitting inside your comp data that nobody approved. Worth having a look before a regulator, or a very sharp graduate hire with a spreadsheet, finds it first.