Network effect
(Englisch)
Vendor lock-in, Path dependence, Metcalfe's law, Reed's law, Beckstrom's law, Two- sided market, Technology lifecycle, Business model, Bandwagon effect, Cluster effect
Surhone, Lambert M. & Timpledon, Miriam T. & Marseken, Susan F.

In economics and business, a network effect is the effect that one user of a good or service has on the value of that product to other people. When network effect is present, the value of a product or service increases as more people use it. The classic example is the telephone. The more people own telephones, the more valuable the telephone is to each owner. This creates a positive externality because a user may purchase their phone without intending to create value for other users, but does so in any case.

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Klappentext

In economics and business, a network effect is the effect that one user of a good or service has on the value of that product to other people. When network effect is present, the value of a product or service increases as more people use it. The classic example is the telephone. The more people own telephones, the more valuable the telephone is to each owner. This creates a positive externality because a user may purchase their phone without intending to create value for other users, but does so in any case.