Informal Hierarchies

Informal hierarchies are unofficial rankings of status, influence, and respect that emerge within groups and organizations, separate from the formal chain of command. Elton Mayo's Hawthorne studies showed that work groups develop their own leaders and norms, and George Homans analyzed how esteem and influence arise from interaction. Peter Blau studied how informal status shapes the operation of formal bureaucracies, and Melville Dalton described cliques that control resources regardless of official position. Michel Crozier showed how people gain power by controlling sources of uncertainty, and Cecilia Ridgeway demonstrated that status beliefs about gender and race produce hierarchy even in groups of equals. Jo Freeman's essay on the tyranny of structurelessness argued that groups without formal structure develop hidden hierarchies that are hard to challenge, and Robert Michels's iron law of oligarchy suggested that leadership tends to concentrate. Pierre Bourdieu's analysis of cultural and social capital explains why some people gain informal authority. Critics note that informal hierarchies may be flexible and efficient but can exclude newcomers and women. Today the concept informs research on organizations, movements, schools, online communities, and workplace inequality.