What the data actually shows
The clearest finding is that secrecy mainly benefits employers. Pay information is a form of bargaining power, and when only one side has it, the other side negotiates blind. Research by Cullen and Pakzad-Hurson modelling pay transparency finds that when workers can see what others earn, employers lose some of the leverage that lets them hold individual wages down — which is one reason firms have historically discouraged salary discussion.
Studies of state and national pay-transparency laws point in a similar direction: greater disclosure is generally associated with narrower pay gaps, including gender pay gaps, because hidden disparities are harder to sustain once they can be seen. The effect is not uniform across every study, and the size varies, but the broad pattern is that visibility tends to compress the unexplained differences that secrecy protects.
There is an important wrinkle. Some of the same research finds that transparency can compress wages overall — not only by raising the underpaid but sometimes by holding down the top, because once a raise must be visible and defensible to everyone, employers grant fewer large, discretionary increases. So transparency tends to make pay fairer and more equal, which is not always the same as making it higher for everyone.
Why this feels different from how it actually is
Sharing pay feels dangerous partly because we have absorbed, often without noticing, an employer-friendly norm that talking about salary is rude, greedy, or unprofessional. That norm is not neutral: it preserves exactly the information asymmetry that makes it harder to know whether you are underpaid. The discomfort is real, but it largely serves the side that sets your pay.
It also feels different because the downside is vivid and the upside is abstract. The risk of an awkward conversation, or of learning a colleague earns more, is immediate and emotional. The benefit — better-calibrated negotiation, a documented pay gap that can be challenged — is slower and easier to discount. So even when sharing would help on average, the felt math leans toward staying quiet.
And learning where you stand can sting regardless of the number. People often report a baseline assumption that they are paid roughly fairly; discovering a peer earns more can trigger resentment even when your own pay is reasonable. That reaction is well documented, and it is part of why transparency, though generally beneficial, is rarely emotionally neutral.
When pay is secret, you are negotiating against a party that knows the full range and what your colleagues make, while you are guessing.
What the research says to do about it
If your goal is to know whether you are paid fairly, the research favours gathering real comparison data over guessing — peers you trust, published salary ranges, and the disclosures now required in a growing number of places. The point is to replace an imagined market rate with an actual one, since the imagined one is usually shaped by the party paying you.
When sharing, the evidence and the broader negotiation literature suggest specificity and reciprocity help: concrete numbers and ranges are more useful to a colleague than vague reassurance, and pay discussion tends to go better when it is mutual rather than one-sided extraction. In many jurisdictions, the legal right to discuss your own pay with coworkers is explicitly protected, which is worth knowing before you assume it is off-limits.
At the organisational level, transparency seems to work best when it is paired with clear, defensible pay structures rather than dropped onto an arbitrary one. Visibility exposes whatever logic — or lack of it — already governs pay, so the systems with a coherent rationale tend to weather it far better than those relying on individually negotiated secrecy.
What the research says does not help
Assuming you can tell whether you are underpaid by feel does not work. Without real comparison data, intuition about your market rate is heavily anchored to your current pay and your employer's framing, which is precisely the information gap transparency closes. Going on gut alone tends to preserve the asymmetry rather than fix it.
Treating any single salary you hear as the benchmark is also misleading. One colleague's number reflects their role, tenure, location, and negotiation, not a universal rate; over-indexing on a lone data point can produce as distorted a picture as having no data. Ranges and multiple sources are far more informative than one figure.
And expecting transparency to feel good is the wrong expectation. The research is fairly consistent that learning where you stand can produce resentment and disappointment even when it leads to a better outcome. Sharing pay is generally useful precisely because it is informative — not because it is comfortable, and treating discomfort as evidence it 'didn't help' misreads the effect.
Transparency tends to make pay fairer and more equal — which is not always the same as making it higher for everyone.
What this looks like in real life
Negotiating blind vs negotiating informed
When pay is secret, the employer knows the full salary range and what your colleagues earn, and you are guessing. That information gap is bargaining power, and it sits on one side of the table. Gathering real comparison data — trusted peers, published ranges, required disclosures — replaces an imagined market rate with an actual one, which is the whole point: the imagined rate is usually shaped by the party paying you.
Learning a peer earns more — and feeling worse anyway
Someone paid fairly for their role can still feel resentment on discovering a colleague earns more. That reaction is well documented, and it does not mean the transparency 'didn't help.' The information can still lead to a better outcome; it is simply rarely emotionally neutral. Treating the discomfort as proof it failed misreads what the effect is.
Real numbers in context
The persistent gaps transparency tends to narrow are real but should be read carefully. In the U.S., women working full-time, year-round earn roughly 80–84 cents for every dollar earned by men on common headline measures (U.S. Census Bureau) — a figure that mixes occupation, hours, experience, and unexplained disparity, not all of which transparency touches. Research on transparency laws generally finds the gap narrows where pay becomes more visible, though the size of the effect varies by study.
The direction of the trade-off matters as much as the magnitude. The same body of work suggests transparency can compress wages overall, sometimes by restraining the largest discretionary raises, so the honest summary is that it tends to make pay fairer and more equal rather than uniformly higher. These are general patterns from a still-developing literature, not precise guarantees for any one workplace.