Signaling

Signaling concerns how observable actions or attributes convey information about less observable qualities. In Spence's model, different signaling costs can support informative separation between types under specified incentives and receiver beliefs. An expensive signal is not automatically honest, and its informational value depends on what alternative senders can do and gain.

A signal is useful only relative to a hidden quality and a receiver's decision. An expensive office might reveal access to money while saying little about technical competence. Before interpreting any display, identify the quality you care about and an alternative explanation for why someone could produce the same display.

Incentives matter more than expense alone. Ask whether an unreliable provider could profitably offer the same promise, whether the promise can be enforced, and whether the receiver can verify performance. Often the best practical response is to supplement a signal with a direct, relevant test that reduces dependence on status or presentation.

When to use it

When someone knows more about a relevant quality than the decision-maker, and observable behavior may help reduce that information gap.

How it can help

Evaluate the quality a credential, promise, portfolio, or visible commitment actually predicts; examine alternative explanations and opportunities for direct verification.