Priya had gotten a bonus in December for six straight years. Eleven percent one year, seven the next, then nine, then nine again. By year five she was quoting her own pay to herself as salary plus about eight.

In November of the sixth year her director told the team there would not be one. Not reduced. None.

Priya is invented. Putting the scene on a made-up person lets me describe what a bonus looks like from the receiving end without describing anybody's real pay.

Here is the claim, before the argument for it.

A bonus that has never once been zero tells the person receiving it almost nothing. It cannot separate a company sharing a real surplus from a company protecting a number it has decided not to cut. Six good years look the same under both.

This is addressed to the owner writing the checks rather than to Priya, because the owner is the only one who can change what the payment means.

The sentence I have to withdraw

In a manuscript I am working on, I argue for splitting what is left at the end of a month into pieces with names, and one of those pieces funds payouts to the team. Then I wrote that a bonus paid out of that piece tells the person receiving it something a raise never can, because a bonus is proof there was a real surplus to share and a raise is proof of nothing but a decision to pay more.

I still think that is the best sentence in the chapter. It also rests on a condition I never wrote down, and without that condition the sentence is false.

What a payment can prove

A payment proves what it rules out, and nothing else.

Priya's bonus moved. Eleven percent down to seven is a cut of more than a third, and a fixed cost with a new name on it does not vary by more than a third. So the variation on its own already rules out the thing I said the zero was needed to rule out. My sentence was wrong on its own terms before anybody got to the hard part.

The hard part is the second story, and variation cannot touch it. A bonus can be treated inside a company as something owed. In a bad year it then gets found, out of borrowing or out of a cut made somewhere the team cannot see. Six Decembers in a row cannot tell that apart from a surplus that happened to be positive every time.

Priya read her bonus as compensation. That was a reasonable inference from six years of behavior and, as year six proved, the wrong one. She had no way to tell.

Which inverts what most owners think they are doing

The natural reading is that the zero year is the year the arrangement broke.

It is the opposite. The zero year is the year the arrangement becomes visible to anybody but the owner. Until a company has paid zero once, nobody inside it can distinguish the two stories, and the owner is the only person in the building who knows which one is true.

A company that quietly funds a bonus out of borrowing to avoid a hard meeting has not protected morale. It has spent the zero year that would have made the six positive years evidence of anything.

There is a catch here I have not resolved. If a bonus becomes informative only after a later zero, then no bonus is informative on the day it arrives, which is the day it is supposed to do its work. I do not have an answer to that.

The zero does not settle it

A company that has paid zero once has shown that the payment can be zero. That is consistent with both stories I described, since a company protecting a number will eventually fail to protect it. Separating them requires the recipient to see that a surplus existed. That is open-book management, and I could not find an evidence base for it. The zero year does less than I claimed.

It also has a signaling problem. An informative signal has to be costly to whoever would misrepresent. Paying zero is cheap for a company genuinely in trouble and expensive for one that is fine, so it separates the two types in the wrong direction in the year it occurs. Other instruments carry the same information without waiting for a bad year: a published formula, a defined pool, or a statement someone outside the company has examined. I treated the zero as the only separating event and did not argue for that.

What I checked

Profit sharing does appear to work, in the modest sense. The best current evidence pools 355 estimates from 56 studies, corrects for the tendency of journals to publish findings that worked, and comes out positive.

Employee ownership is smaller than its advocates suggest. Across 102 samples and about 57,000 firms the correlation with firm performance is 0.04, which works out to roughly one part in six hundred of the variation in how firms perform.

Neither of those is about what a bonus communicates, which is what this post is about. They are here because somebody will ask.

The one that does bear on the argument is a gap. For a bonus to prove a surplus, the person receiving it has to be able to see there was one, which is open-book management, and my manuscript never raises it. Having gone looking, I understand why. I found no peer-reviewed evidence base for open-book management at all.

What to do about it

Ask when you last paid zero.

If the answer is never, that does not prove anything is broken. Priya's employer had never paid zero in six years and may have been running it honestly the whole time.

What it does mean is that nobody in the building can tell, including the people whose behavior you are trying to change. A signal nobody can read is doing none of the work you are paying for, and you are paying full price for it every December.