As all these examples suggest, effective norms can constitute a powerful form of social capital. This social capital, however, like the forms described earlier, not only facilitates certain actions; it constrains others. A community with strong and effective norms about young persons' behavior can keep them from "having a good time." Norms that make it possible to walk alone at night also constrain the activities of criminals (and in some cases of noncriminals as well). Even prescriptive norms that reward certain actions, like the norm in a community that says that a boy who is a good athlete should go out for football, are in effect directing energy away from other activities. Effective norms in an area can reduce innovativeness in an area, not only deviant actions that harm others but also deviant actions that can benefit everyone.

DEFINE: Clarifies dual nature of norms as social capital — simultaneously facilitating and constraining, a nuance often missed in shorthand. Builds on: "Effective community norms suppress innovation alongside harmful deviance."

Coleman, SocialCapitalCreation-1988, loc. 111