Now with market mechanisms, price must follow changes of supply and demand.

This day follows the rules of the Hindu calendar and changes with every year.

We were also unable to follow changes in variables over time.

Warm and cold fronts always follow changes in barometric pressure.

The Index tends to follow changes in the overall economy.

The plan follows changes three years ago in certification rules.

The change of name occurred in 1995, and followed organisational changes.

Those actions followed much more consequential changes in the legal and political landscape this year.

This follows significant structural changes to the Students' Association which began in the late 1990s.

In addition, its power shifts following political changes and technology improvement.