Regis Tremblay

Writing about work: who does it, on what terms, and how the claims made about it compare with what has been measured.

Pay, and how it is set ยท 3.3

Pay transparency, and what it changes

Pay transparency, and what it changes. What is actually the case, and how it compares with what is repeated.

Transparency covers at least three separate policies with different mechanisms and different evidence, and they are argued about as one.

The three

Posting ranges in advertisements. Adopted by Colorado in 2021, New York City and several American states since, and required across the European Union under a directive member states must implement by mid-2026.

A right to information. An employee may ask what others in comparable roles are paid, in aggregate. Weaker, and the basis of most of the European approach.

Full publication. Individual pay is public, as tax records are in some Nordic countries. Rare and long-established where it exists.

What the evidence shows

Requiring firms to report pay by gender narrows the gender gap modestly. A Danish study of such a requirement found the gap narrowing by a few percentage points, and found it happening partly through slower wage growth for men rather than faster growth for women.

That second finding is the one usually omitted and it matters: the policy compressed the distribution rather than lifting one part of it.

The theoretical complication

Where pay is individually negotiated and becomes public, employers lose the ability to pay one person more quietly, and the response can be to pay everybody the lower figure. Work combining theory and evidence has argued that transparency can reduce average wages for this reason, by shifting the bargaining structure rather than by any employer malice.

So transparency compresses. Whether compression is desirable depends on what you wanted, and it is not the same objective as raising pay.

What comparison does to people

A study of a Californian university system, where salaries became searchable, found that employees who discovered they were paid below the median in their unit reported lower satisfaction and greater intention to leave, while those above it reported no corresponding improvement.

The effect was asymmetric, which is the general finding about relative comparison and is worth knowing before assuming that more information makes people happier.

How range posting is evaded

By posting a range so wide it conveys nothing. Advertisements with ranges spanning a factor of two are common wherever posting has been required, and enforcement of good faith is difficult because good faith is difficult to define.

Jurisdictions have responded by requiring the range to be the one the employer actually expects to pay, which relocates the problem into proving what an employer expected.

The part that works most clearly

Salary history bans, described in the entry on how wages are set. Removing the anchor is a small, cheap, enforceable intervention with measured effects concentrated among the people the anchor was harming most.

It is also the least discussed of the transparency measures, probably because it sounds procedural rather than principled.

What an employer gets

Fewer wasted applications, since candidates self-select against the range. Less time spent negotiating. And a forcing function on internal inconsistency, because posting a range requires knowing what the range is, and a surprising number of organisations discover at that point that they do not.

The honest summary

Transparency reliably compresses pay distributions and reliably reduces gender gaps modestly. It does not reliably raise pay and may lower average pay where bargaining was individual. It reduces satisfaction among those who learn they are below the middle.

Whether that package is an improvement depends on which of those you weight, which is a political question rather than an empirical one, and the empirical part is clearer than the argument usually suggests.

The unintended clarity

Posting requirements force employers to write down the range, and a number of organisations have discovered on doing so that people at the same grade are paid amounts they cannot justify.

Fixing that is expensive and finding it is the point. Several employers have described the audit as the most valuable part of complying, which is not what the policy was designed to achieve.

The reaction of colleagues

Pay becoming visible inside a team changes the conversation permanently, and managers consistently report this as the hardest part. It is also the point: the discomfort exists because the distribution was not defensible, or because nobody had been asked to defend it.

What this rests on

  1. The European Union pay transparency directive was adopted in 2023 with a member state implementation deadline in 2026; its text is public.
  2. The Danish study of mandatory gender pay reporting and its finding on the composition of the narrowing is published.
  3. Work on transparency and average wages combining theory with empirical evidence has been published in the economics literature.
  4. The Californian salary disclosure study reporting asymmetric effects on satisfaction is published and widely cited.

For broader context, consult EU Pay Transparency Directive.