Identity Signaling

What it is

Berger's classroom demonstration is the cleanest way in. Tell a room that somebody drives a minivan and they will confidently infer an age, children and a set of politics. Nothing about the vehicle carries that information. The inference is doing all the work, and everyone knows the inference is being made, which is why the choice was never neutral in the first place.

Berger and Heath published the divergence work in the Journal of Consumer Research in 2007 and in the Journal of Personality and Social Psychology in 2008. The finding is that people move away from tastes associated with groups they do not want to be mistaken for, and that they do so in domains where consumption is taken to signal identity rather than mere preference.

There is a mechanism underneath which is worth crediting properly. Nick Feltovich, Rick Harbaugh and Ted To described countersignalling in the RAND Journal of Economics in 2002: signals form a hierarchy, and once a signal is widely adopted the people who were using it to mark distinction move up a rung. Casual friends signal warmth to distinguish themselves from enemies; close friends signal unfriendliness to distinguish themselves from casual friends. Kevin Simler and Robin Hanson apply that structure to taste abandonment in The Elephant in the Brain, and it is the sharpest available reading of why a taste dies when the wrong group adopts it. The abandoning group is not rejecting the object. It is moving up a rung to keep the distinction legible.

In effect

Two commercial applications follow directly. The first is lifestyle advertising, which on this reading works indirectly: an image advertisement does not persuade the buyer that a beer is special, it changes what the buyer's peers will think of someone holding that beer. That makes the purchase rational even for a customer who knows perfectly well that a beer is just a beer.

The second is the badge. A belief, an emblem or a visible affiliation functions as a marker answering whether a person is with a group or against it, which is the political and religious version of the same move.

The practical reading for anyone building a brand is uncomfortable. You do not fully control who adopts your product, and adoption by the wrong group is a real commercial risk that no amount of product improvement addresses, because the object was never the point.

The countersignalling reading comes with a hole that should travel with it. Warmth confirms the theory and coldness confirms the theory, and the escape hatch that insiders can tell a non-signal from a counter-signal while outsiders cannot makes the distinction very hard to test from outside. Cite Feltovich and colleagues for the concept, Berger and Heath for the divergence finding, and Simler and Hanson only for the reading.

What it does not say

It does not say that all consumption is signalling. It says that consumption in identity-relevant domains is read as signalling, which is a narrower and more defensible claim.

It does not say the effect is large. The research is a handful of studies with modest samples, much of it at one university, and no multi-laboratory replication has established the magnitude. The direction is well supported; the size is not.

It does not say people are conscious of doing it. The inference in the minivan exercise is automatic, and the abandonment does not arrive labelled as abandonment.

And it does not credit countersignalling to the popular book most readers meet it in. That idea is Feltovich, Harbaugh and To's, from 2002.

---