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Density Dependence

Also called Legitimation and competition in organisational populations

As a population of organisations grows, early growth raises legitimacy and encourages founding, while later growth raises competition and encourages failure.

Hannan and Carroll's model produces a characteristic inverted-U in founding rates and a U in mortality: the first firms in a new field must establish that the form is a real and viable thing, which helps everyone, and once that is settled additional entrants only crowd. It fits populations from newspapers to breweries to unions.

In practice

  • An early entrant in a new category spends money teaching customers the category exists, and competitors benefit.
  • The tenth firm to enter finds legitimacy free and customers scarce.
Further reading
Wikipedia
Subject
Organizations & Bureaucracy
Essay
Why organisations learn, harden and decline

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