Set the pay band: fix compression without breaking it for everyone

1. Before you start

A pay band is the salary range for a role: a minimum, a midpoint, and a maximum. The midpoint is usually set to the market rate for the job, and the min and max sit a fixed distance on either side. Tiny example: if the market rate for a role is $100,000 and you set the band at plus-or-minus 20%, the band runs from a min of $80,000 to a max of $120,000, with the midpoint at $100,000. A person’s compa-ratio is simply their salary divided by that midpoint — someone earning $90,000 in this band has a compa-ratio of 0.90, meaning they are paid 90% of the market rate.

Three honest statements before you start:

This is a Decide course. You read a situation, learn the idea, and make a call. You do not write or run any code.
The companies below, Northwind Labs and Larkspur Retail, are composite — invented firms built from ordinary figures so the arithmetic is clean. No number is a claim about any real company.
This is not a certification. It shows, to you, that you can defend a pay-band call.

You need only arithmetic. The hard part is judgment, not maths.

2. The Situation

Northwind Labs, a mid-size software company, has just made an offer to a new senior engineer at $153,000 — the going market rate — while Priya, a strong four-year engineer already on the team, earns $138,000. Priya’s manager realises the newcomer will out-earn a seasoned performer the day she starts, and Priya is one open-tab away from noticing too. The manager has a small equity budget and has to decide how to fix it — without accidentally handing every engineer a raise or pushing anyone off the top of the band.

3. What you’ll be able to do

After this course you will be able to:

Build a pay band — min, midpoint, max — from a market rate and a spread, and read a person’s compa-ratio to see where they sit against market.
Recognise pay compression (and its sharper form, inversion, where a newer hire out-earns a tenured one) and say why it is a retention and fairness problem, not just an optics one.
Decide the fix — a targeted equity adjustment versus moving the whole band — by weighing market rate, internal equity, and budget, and name the failure mode that breaks the band for everyone.
Tell the difference between one person’s compression and a systemic problem, and say which one justifies re-slotting the band.

4. Prerequisites & time box

Prerequisites: arithmetic. Helpful but not required: the idea of a market salary rate (what the job pays elsewhere right now). No spreadsheet, no compensation background. This is a read-and-decide course in the browser — there is no code to set up.

Time box: about 20 minutes of reading (measured), plus your own thinking time on the call. That is under the 25-minute cap for a concept course.

Difficulty: 5 / 8 — a manager-level decision. Three forces pull against each other at once — the market rate you must match to hire, internal fairness to the people already on the team, and a fixed budget — and the tempting fix (move the whole band) is exactly the one that quietly breaks the structure for everyone. A single lever handed to you would make it a 3; the interacting trade-off and the built-in failure mode put it at 5.

Free-tier honesty: no signups, no paid tools, no special hardware. Everything here is arithmetic you can check by hand.

5. The case & where the numbers come from

Northwind Labs is a composite software company: its market rate, band spread, salaries, and team size are ordinary figures a tech compensation team would recognise, chosen for clean arithmetic and not drawn from or claimed about any real firm. The definitions — pay band, compa-ratio, pay compression and inversion — are standard and cited in section 11. Every figure below is an in-course assumption; every later number is computed from these.

Item	Figure
Market rate (midpoint) for a Senior Software Engineer	$150,000
Band spread (half-width on each side of the midpoint)	20%
Priya’s salary (four-year engineer, strong performer)	$138,000
Market rate needed to hire a new senior engineer now	$153,000
Engineers in this band	12
Highest-paid engineer in the band	$176,000
Equity-adjustment budget this cycle	$20,000

6. The Concepts

Pay bands: min, mid, max

A pay band turns “what does this job pay?” into a range instead of a single number, so a team of people doing the same role can be paid differently for tenure and performance without anyone falling outside a defensible structure. You build it from two inputs: a midpoint (the market rate) and a spread (how far the band reaches on each side).

For Northwind’s Senior Software Engineer role, the market rate when the band was set last year was $150,000, so that is the midpoint. (The market has since climbed to $153,000 — the $153k you saw in section 2 is this year’s hire rate against a midpoint fixed at last year’s number. That gap between a stale midpoint and a moved market is exactly the compression you will diagnose below; leaving the midpoint at $150k for now keeps the band arithmetic clean.) With a 20% spread:

Minimum = $150,000 × (1 − 0.20) = $120,000
Midpoint = $150,000
Maximum = $150,000 × (1 + 0.20) = $180,000

The band runs $120,000 – $180,000. A brand-new hire who is still learning might start near the min; a seasoned expert at the top of their game approaches the max. The whole width — from min to max, $60,000 on a $120,000 floor, or 50% — is the room you have to pay for experience and performance before you have to move the structure itself.

Compa-ratio

A compa-ratio is a person’s salary divided by the band midpoint. It is the one number that says, at a glance, where someone sits against market:

1.00 — paid exactly at market (the midpoint).
below 1.00 — paid below market: typical for a newer or still-developing person.
above 1.00 — paid above market: typical for a top performer near the ceiling.

Priya earns $138,000 against a $150,000 midpoint, so her compa-ratio is $138,000 ÷ $150,000 = 0.92. That looks reasonable in isolation — a strong performer a little below midpoint. The problem only appears when you put her next to what the same role costs to hire today.

(An interactive calculator sits here — enter the market rate, the spread, the tenured salary, the new-hire offer, and your proposed adjustment, and watch the band, the compa-ratios, the inversion, and the decision flip.)

Pay compression and inversion

Pay compression is when the pay gap between two people shrinks until it no longer reflects the real difference in their experience, tenure, or performance. It happens because the market moves faster than internal raises: the rate to hire a senior engineer has climbed to $153,000, but Priya’s yearly merit raises have crawled up from an older market and left her at $138,000.

Line the two up:

New hire’s compa-ratio: $153,000 ÷ $150,000 = 1.02
Priya’s compa-ratio: $138,000 ÷ $150,000 = 0.92

The newcomer will out-earn a four-year performer by $153,000 − $138,000 = $15,000, about 11%. When the gap does not just shrink but flips — the newer person earns more — that is the sharp form of compression called inversion, and it is the one that costs you people. Priya can read a job board; a seasoned engineer who discovers she is paid below a day-one hire is a retention risk long before she is a resignation. Note that both salaries are still inside the $120,000 – $180,000 band — nothing here is technically out of range. Compression is not a broken band; it is a broken relationship between salaries inside the band, which is why “everyone’s within range” is no defence.

Fixing compression without breaking the band

There are three levers, and only one of them is usually right.

Lever 1 — a targeted equity adjustment. Raise the compressed person to close the gap. Bring Priya to $153,000 and her compa-ratio becomes 1.02, level with the new hire; the inversion is gone. The cost is $153,000 − $138,000 = $15,000 a year, for one person, and $153,000 is still comfortably inside the $180,000 band max. Even a partial fix to the $150,000 midpoint (compa 1.00) costs only $12,000 and removes most of the sting. This is the precise tool for a precise problem, and it fits the $20,000 budget.

Lever 2 — move the whole band. Lift the midpoint to $153,000 and give all 12 engineers a matching adjustment. This is the tempting “fix it once, fix it for everyone” move, and it is the failure mode. It is far more expensive — a roughly 2% adjustment across a 12-person team averaging about $150,000 is near $36,000 a year, more than twice the targeted fix — and it still does not solve Priya’s problem, because a flat raise keeps her the same 2% below the newcomer. Worse, the $176,000 engineer at the top of the band (compa 1.17) gets pushed toward and possibly over the new maximum, and the raise cascades to adjacent bands who now feel compressed against this one. You spent double to break the structure and miss the target.

Lever 3 — do nothing until she resigns, then counter. The cheapest today and the most expensive over a year: replacing a four-year engineer costs far more than $15,000 in recruiting and lost ramp, counteroffers are reactive, and word that you only pay to stop people leaving trains everyone to threaten to leave.

The defensible call for Northwind is Lever 1: a targeted adjustment sized to the one person, kept inside the band. Market rate told you what it costs to hire; internal equity told you the gap is unfair; the budget told you that you cannot afford to fix everyone — so you fix the person who is actually broken.

What flips the call. The one-person fix is right only if Priya is genuinely the exception. Suppose instead the market rose 12% across the board while internal raises were 3%, and 8 of the 12 engineers now sit below compa 0.90. Then the compression is systemic — the band itself is below market — and targeted patches would just reappear next quarter as each person notices in turn. That is the one case where moving the band, funded as a real budget line, is the correct fix rather than the failure mode. The number that flips the decision is not the size of any one gap; it is how many people are compressed — one, or the whole cohort.

7. Your Call

You have seen how the band, the compa-ratio, and the market-versus-equity-versus-budget trade decide Northwind’s call. Now a different one lands on your desk.

Larkspur Retail is a composite retail chain. The market rate (midpoint) for a Store Manager is $72,000, and Larkspur uses a 15% band spread. New store managers now come in at $70,000. But five tenured managers are compressed, earning $60,000, $62,000, $63,000, $61,000, and $64,000. Once you build the band in section 7 you will see its floor sits at $61,200, so two of these five (the $60,000 and $61,000 managers) have slipped below the band’s own minimum — not merely low inside it — while the other three are compressed but still in range. Bringing all five up to the $70,000 new-hire level would cost $40,000 — and you have only a $30,000 equity budget this cycle. The regional director wants to lift the whole band’s midpoint to $80,000 and raise everyone. Your job is to make the call under the cap.

How this differs from the taught case (the transfer): Larkspur is a different company and sector (retail, not tech) with different figures (a $72,000 midpoint, a 15% spread, five compressed people), and it asks a different decision — allocating a capped budget across several people rather than sizing one person’s fix — under an added constraint, a fixed $30,000 that cannot cover everyone. Four dimensions differ; the rule needs two. The core concept is the same: build the band, read compa-ratios, and fix compression without breaking the band for everyone.

8. Self-check

Before you write the memo, make sure you can say each of these in one line:

How do you build a band’s min, midpoint, and max from a market rate and a spread, and what does a compa-ratio of 0.92 tell you?
Why is a new hire out-earning a tenured performer a real problem even when both salaries are inside the band?
Why is moving the whole band usually the wrong fix for one person’s compression — and what one fact makes it the right fix instead?

If any is fuzzy, reread section 6 — the band, the compa-ratio, compression and inversion, and the targeted-versus-structural fix are the whole course.

9. Stretch

Push the decision further on your own:

Back at Northwind: what is the largest targeted adjustment you could give Priya that still keeps her compa-ratio at or below the top-of-band 1.20? (Solve for the salary at compa 1.20 and compare to $153,000.)
Priya is one of three four-year engineers, all around $138,000, while two others are already at $150,000. Does that change your call from a single fix to something structural, and at what count of compressed people would you switch? (The genuinely harder one: decide where “one person” becomes “the cohort.”)
Write the one sentence you would say to a director who insists “just move the whole band, it’s simpler.”

10. Ship it — your decision memo

Write a one-page memo to Northwind’s engineering director. State the call (do not move the whole band; give Priya a targeted adjustment to $153,000, a $15,000 cost that closes the inversion and stays inside the $120,000 – $180,000 band). Show the arithmetic in three lines: band = $150,000 midpoint ± 20% = $120,000 – $180,000; Priya’s compa-ratio 0.92 versus the new hire’s 1.02, a $15,000 inversion; targeted fix $15,000 versus roughly $36,000 to move the band and still miss the target. Name what you rejected (moving the band for everyone; waiting for her to resign) and why. Name the one thing that would change your mind (compression that is systemic — most of the cohort below market — not one person). Keep it to a single page a director grasps in two minutes. This memo is your own argued claim — not a credential.

11. Sources

Northwind Labs and Larkspur Retail, and every salary figure attached to them, are composite — built from ordinary, realistic figures for clean teaching arithmetic, not drawn from or claimed about any real company. What is cited below are the standard definitions the course uses to reason about them; every other figure the learner sees is an in-course assumption or computed from those assumptions inside the course.

Concept / claim	Source (publisher)	URL	Accessed
Pay band / pay grade — salary range with min, mid, max	Wikipedia — Pay grade	https://en.wikipedia.org/wiki/Pay_grade	2026-07-20
Salary as the market rate a role pays	Wikipedia — Salary	https://en.wikipedia.org/wiki/Salary	2026-07-20
Compa-ratio — salary divided by band midpoint	Wikipedia — Compa-ratio	https://en.wikipedia.org/wiki/Compa-ratio	2026-07-20
Wage (pay) compression — gaps that no longer reflect experience	Wikipedia — Wage compression	https://en.wikipedia.org/wiki/Wage_compression	2026-07-20
Internal equity / perceived fairness of relative pay	Wikipedia — Equity theory	https://en.wikipedia.org/wiki/Equity_theory	2026-07-20

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