Social norms

In one group, arriving ten minutes late is ordinary. In another, it is taken as disrespect. The clock is the same; the shared expectations differ. Social norms let people anticipate one another without negotiating every interaction.

A norm is more than a common behavior. People may expect others to follow it and believe that others expect them to do so too. Those expectations can be supported by praise, embarrassment, criticism, exclusion, or the quiet desire not to disappoint someone.

An organization may announce that junior staff should challenge decisions while continuing to reward deference. People learn from what happens to the first person who speaks, not only from the announcement. Visible responses can sustain an old norm or help establish a new one.

Norms can make cooperation easier, but they can also preserve harmful arrangements. A practice may continue because everyone expects others to defend it, even when many privately dislike it. Conversely, a behavior can be widespread because people face similar constraints, without being a norm they endorse.

Understanding the mechanism means looking at the relevant audience, the expected response, and the situations where the expectation applies. A rule in a handbook and a norm in everyday interaction can point in opposite directions.