Introduction
Product managers often want to build something new. In “Eager Sellers and Stony Buyers,” John Gourville explains why most innovations fail. They fail because they ask people to change. Consumers value what they already have three times more than something new. Companies value their new ideas three times more than they should. This creates a nine-times gap between what sellers expect and what buyers actually want.
Buyer Resistance and the Webvan Example
A clear example is Webvan, an online grocery service that spent one billion dollars to change how people shop. The idea looked great. People could order food online and have it delivered to their door. But shoppers enjoy small things about grocery trips. They like choosing their own produce and seeing what looks good for dinner. When Webvan took that away, people felt like they were losing something.
Gourville explains that people feel losses more strongly than gains. Webvan gave them convenience but removed control. Because people feared the loss more than they valued the gain, they stayed with what they knew.
The Psychology of Change
Gourville shows that every new product asks people to change their behavior. The bigger the change, the harder it is to accept. The most successful products make the change feel easy.
The Toyota Prius is a good example. It helped the environment and saved fuel, but it still felt like a regular car. Drivers did not have to learn anything new. The change in behavior was small, but the value was big.
What Product Managers Can Do
Good product managers should make new ideas fit into daily life. They should make new habits feel familiar. Webvan could have started with online ordering and in-store pickup. People would still visit the grocery store but save time by skipping the lines. That small step could have helped them build trust before offering full delivery.
Gourville also reminds us that change takes time. Even good products need patience. TiVo was more advanced than the DVD player, but it struggled because it changed how people watched TV. The DVD player felt simple and familiar, so people accepted it quickly.
Conclusion
True innovation is not about adding more features. It is about making life easier. A product manager’s job is to close the gap between eager sellers and careful buyers. As Gourville writes, “It’s not enough for a new product to be better. Unless the gains far outweigh the losses, consumers will not adopt it.” People do not fear change. They fear loss. The best innovations help people move forward without feeling like they are giving something up.
