If such people live in a particular country or population group, their values can produce marked changes in the size of that country or group, even as world population changes only slowly.

• 如果这些人生活在特定的某个国家或特定的人口群体中，那么即使世界人口变化很缓慢，他们的价值观也会使该国或群体的人口数目产生显著的变化。