Contagious: Why Things Catch On

by Jonah Berger

The story of Thuan, Tippi, and the spread of Vietnamese nail salons is pretty amazing. But even more surprising is the fact that it’s not unique. Other immigrant groups have cornered similar niches.

The topic of employment is frequent among new immigrants looking for work (Triggers). So they look to see what jobs other recent immigrants have taken (Public) and talk to them about the best opportunities. These more established immigrants want to look good (Social Currency) and help others (Practical Value) so they tell exciting (Emotion) narratives (Stories) about others they know who have been successful.

So why did thousands of people transmit these products and ideas? And that’s where we get to the third point: certain characteristics make products and ideas more likely to be talked about and shared.

Social Currency We share things that make us look good Triggers Top of mind, tip of tongue Emotion When we care, we share Public Built to show, built to grow Practical Value News you can use Stories Information travels under the guise of idle chatter

They relied on one or more of the six key STEPPS and this made their products and ideas more contagious. Social Currency Does talking about your product or idea make people look good? Can you find the inner remarkability? Leverage game mechanics? Make people feel like insiders? Triggers Consider the context. What cues make people think about your product or idea? How can you grow the habitat and make it come to mind more often? Emotion Focus on feelings. Does talking about your product or idea generate emotion? How can you kindle the fire? Public Does your product or idea advertise itself? Can people see when others are using it? If not, how can you make the private public? Can you create behavioral residue that sticks around even after people use it? Practical Value Does talking about your product or idea help people help others? How can you highlight incredible value, packaging your knowledge and expertise into useful information others will want to disseminate? Stories What is your Trojan Horse? Is your product or idea embedded in a broader narrative that people want to share? Is the story not only viral, but also valuable?