However, Borjas noticed a trend known as regression towards the mean.

On the other hand, cities in desert environments show a different trend known as the "urban oasis effect".

Cittaslow is part of a cultural trend known as the Slow movement.

Working out while not really working is the concept behind a trend known as passive exercise.

The trend, known as the loudness war, has become very common on modern rock CDs.

Heads develop in animals by an evolutionary trend known as cephalization.

And governments in recent years have begun to hire outside companies to do work usually done by municipal employees, a trend known as privatization.

Increasingly, more people moved out to the suburbs, in a trend known as suburbanization.

A former boss once decided to follow a trend known as Management by Walking Around.

In many cases, their dance works are part of the trend known as the theater of images.