A social norm or norm is a shared standard of acceptable behavior by a group. Social norms can both be informal understandings that govern the behavior of members of a society, as well as be codified into rules and laws. Social normative influences or social norms, are deemed to be powerful drivers of human behavioural changes and well organized and incorporated by major theories which explain human behaviour. Institutions are composed of multiple norms. Norms are shared social beliefs about behavior; thus, they are distinct from "ideas", "attitudes", and "values", which can be held privately, and which do not necessarily concern behavior. Norms are contingent on context, social group, and historical circumstances. Scholars distinguish between regulative norms (which constrain behavior), constitutive norms (which shape interests), and prescriptive norms (which prescribe what actors ought to do). The effects of norms can be determined by a logic of appropriateness and logic of consequences; the former entails that actors follow norms because it is socially appropriate, and the latter entails that actors follow norms because of cost-benefit calculations. Others see social norms emerging as part of an evolutionarily stable strategy, where they stabilize through third-party punishment. Three stages have been identified in the life cycle of a norm: (1) Norm emergence – norm entrepreneurs seek to persuade others of the desirability and appropriateness of certain behaviors; (2) Norm cascade – when a norm obtains broad acceptance; and (3) Norm internalization – when a norm acquires a "taken-for-granted" quality. Norms are robust to various degrees: some norms are often violated whereas other norms are so deeply internalized that violations are infrequent. Evidence for the existence of norms can be detected in the patterns of behavior within and across social groups, as well as their articulation in group discourse.
Definition
There are varied definitions of social norms, but there is agreement among scholars that norms are:
social and shared among members of a group related to behaviors and shape decision-making proscriptive or prescriptive socially acceptable way of living by a group of people in a society In 1965, Jack P. Gibbs identified three basic normative dimensions that all concepts of norms could be subsumed under:
"a collective evaluation of behavior in terms of what it ought to be" "a collective expectation as to what behavior will be" "particular reactions to behavior" (including attempts sanction or induce certain conduct) According to Ronald Jepperson, Peter Katzenstein and Alexander Wendt, "norms are collective expectations about proper behavior for a given identity." Wayne Sandholtz argues against this definition, as he writes that shared expectations are an effect of norms, not an intrinsic quality of norms. Sandholtz, Martha Finnemore and Kathryn Sikkink define norms instead as "standards of appropriate behavior for actors with a given identity." In this definition, norms have an "oughtness" quality to them. Michael Hechter and Karl-Dieter Opp define norms as "cultural phenomena that prescribe and proscribe behavior in specific circumstances." Sociologists Christine Horne and Stefanie Mollborn define norms as "group-level evaluations of behavior." This entails that norms are widespread expectations of social approval or disapproval of behavior. Scholars debate whether social norms are individual constructs or collective constructs. Economist and game theorist Peyton Young defines norms as "patterns of behavior that are self-enforcing within a group." He emphasizes that norms are driven by shared expectations: "Everyone conforms, everyone is expected to conform, and everyone wants to conform when they expect everyone else to conform." He characterizes norms as devices that "coordinate people's expectations in interactions that possess multiple equilibria." Concepts such as "conventions", "customs", "morals", "mores", "rules", and "laws" have been characterized as equivalent to norms. Institutions can be considered collections or clusters of multiple norms. Rules and norms are not necessarily distinct phenomena: both are standards of conduct that can have varying levels of specificity and formality. Laws are a highly formal version of norms. Laws, rules and norms may be at odds; for example, a law may prohibit something but norms still allow it. Norms are not equivalent to an aggregation of individual attitudes. Ideas, attitudes and values are not necessarily norms, as these concepts do not necessarily concern behavior and may be held privately. "Prevalent behaviors" and behavioral regularities are not necessarily norms. Instinctual or biological reactions, personal tastes, and personal habits are not necessarily norms.
Emergence and transmission Groups may adopt norms in a variety of ways. Some stable and self-reinforcing norms may emerge spontaneously without conscious human design. Peyton Young goes as far as to say that "norms typically evolve without top-down direction...through interactions of individuals rather than by design." Norms may develop informally, emerging gradually as a result of repeated use of discretionary stimuli to control behavior. Not necessarily laws set in writing, informal norms represent generally accepted and widely sanctioned routines that people follow in everyday life. These informal norms, if broken, may not invite formal legal punishments or sanctions, but instead encourage reprimands, warnings, or othering; incest, for example, is generally thought of as wrong in society, but many jurisdictions do not legally prohibit it. Norms may also be created and advanced through conscious human design by norm entrepreneurs. Norms can arise formally, where groups explicitly outline and implement behavioral expectations. Legal norms typically arise from design. A large number of these norms we follow 'naturally' such as driving on the right side of the road in the US and on the left side in the UK, or not speeding in order to avoid a ticket. Martha Finnemore and Kathryn Sikkink identify three stages in the life cycle of a norm:
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