Picture the quarterly review. The agency lead clicks to the slide everyone secretly waits for, the one with the big number. "Two point three million in earned media value." Heads nod around the table. The client writes it down. Somewhere in that room, at least one person knows the number is fiction, and says nothing, because the number is the reason the meeting feels like a win.
That number is advertising value equivalency, or AVE. It is one of the most-used metrics in public relations, and it has been formally condemned by the industry's own standards body for fifteen years. It is, in the most literal sense, an undead number. The people who use it will tell you it is meaningless. Then they will put it on the next slide.
A number born in the Mad Men era
AVE does exactly what the name says. You get a piece of press coverage, you measure how much space or airtime it took up, and you calculate what it would have cost to buy that same space as an advertisement. A half-page in a national paper "equals" the ad rate for a half-page. Media historian Tom Watson traced the practice back to the 1940s, when print advertising ruled and an ad rate card felt like a solid, objective yardstick.
The logic made a rough kind of sense in 1948. Press coverage was hard to value, ad space had a price tag, so borrow the price tag. The problem is that a news article and an advertisement are not the same product. One is something you paid to say about yourself. The other is something a journalist chose to write, which is precisely why it carries weight the ad never could. AVE takes the thing that makes earned media valuable, its independence, and prices it as if it were the thing it is not.
The three-times fudge factor
Here is where it gets fun. PR teams noticed that trusted editorial should be worth more than a paid ad, so they invented a workaround: multiply the AVE. The most common multiplier is 3x, on the theory that earned coverage is roughly three times as credible as advertising.
Where does the three come from? Nowhere. Multipliers used across the industry range anywhere from 1.5 to 6, picked by whoever is building the report. You say 3x, I say 5x, the client's cousin who did a marketing module says 2x. A metric already built on a shaky analogy gets a second, entirely arbitrary number bolted on top to make the first number bigger. Bold strategy. It works, in the sense that the slide now reads seven million instead of two.
The industry wrote its own obituary
In 2010, a room full of measurement specialists in Barcelona did something unusual for an industry. They named their own worst habit and tried to end it. The result was a set of standards now known as the Barcelona Principles, issued by the International Association for the Measurement and Evaluation of Communication, or AMEC. Principle five was blunt: AVEs are not the value of communication.
They did not stop there. AMEC later published a document titled, with no room for interpretation, The Definitive Guide: Why AVEs Are Invalid. When the principles were refreshed in 2020, the language got sharper still, moving from "AVEs are not the value of communication" to "invalid measures such as advertising value equivalents (AVEs) should not be used," with the emphasis shifting to outcomes and business impact. The principles are now on their fourth version. Fifteen years of standards, guides, conference sessions, and campaigns, all pointing at one number and saying: please, stop.
So why is it still on the slide?
Because it works on the person paying the invoice. A decade after Barcelona, close to half of communications leaders were still using AVEs. A 2024 industry survey found about a fifth of PR professionals still reach for it when reporting campaign success. The reason is not ignorance. Practitioners know it is discredited. They keep using it because clients ask to see it.
That is the whole story, and it is a story about human psychology, not measurement science. A CMO needs one clean figure to defend a budget to a CFO who does not care about share of voice or sentiment or message pull-through. AVE hands over a single dollar sign. It is legible, it is big, and it fits in a board deck. Every honest alternative, a real read on whether the coverage changed what people believed or did, is messier and harder to compress into one slide. The zombie survives because it feeds on our appetite for a simple number, and that appetite is bottomless.
The vanity metric gets an AI sequel
If you work in a creative agency and you are enjoying this from a safe distance, do not get comfortable. AVE is just the most famous example of a much bigger pattern, and AI is about to pour fuel on it.
The whole reason vanity metrics thrive is that they are cheap to produce and flattering to look at. Generative tools have just made producing them nearly free. You can now spin up a dashboard of impressive-sounding numbers in seconds: reach, "estimated value," engagement scores, an AI-generated sentiment read with a confidence figure that sounds authoritative and means very little. The temptation that created AVE, the pull toward one big legible number that makes the work look good, does not shrink when the number becomes effortless to generate. It multiplies.
The defense is the same one AMEC has been preaching since Barcelona: measure the outcome, not the proxy. Did the work move a belief, a behavior, a sale. That takes context, judgment, and a willingness to report a smaller, truer number instead of a larger, hollow one. For agencies, measurement was never really a math problem. It is a client-management problem: the discipline to tell the person with the budget what actually happened, even when a shinier fiction is sitting right there. If a client genuinely insists on seeing AVE, fine, run the number and know exactly what it is not. Just refuse to let it stand in for the work.
Back to that slide
The big number in the quarterly review is not going to die. It has outlived the fax machine, the print ad boom that created it, and fifteen years of its own industry trying to bury it. What can change is what you let it mean. Put it on the slide if the client demands it, then spend the next slide on the thing that actually happened: who changed their mind, and what they did next. That second slide is harder to build, easier to defend, and impossible to fake. In an era where anyone can generate a convincing fiction in one click, being the team that reports the true number is about to become the most valuable thing you can put in the room.