PUBLIC MARKS from vista with tag effect

Stories about breakthrough insights at the intersection of fields, disciplines and cultures based on my new book The Medici Effect (www.themedicieffect.com).

The network effect causes a good or service to have a value to a potential customer dependent on the number of customers already owning that good or using that service. Metcalfe's law states that the total value of a good or service that possesses a network effect is roughly proportional to the square of the number of customers already owning that good or using that service.