Stories can act as vessels, carriers that help transmit information to others. In other words, stories carry things, a lesson or moral, information or a take-home message. No wonder that people tell stories for the same reasons they share word of mouth. Some narratives are about social currency, some are driven by emotions or retold for their practical value.
A professor at the Wharton School of the University of Pennsylvania. An expert on word of mouth, viral marketing, social influence, and how products, ideas, and behaviors catch on.