They're simply noticed more when total supply is struggling to match demand.

In recent years, prices have been strong because capacity has roughly matched demand.

Plants running on natural gas and coal, by contrast, can adjust their output over the course of a day to match demand.

Supply could not rise to match demand after all, the new view declared, because the nation lacked the necessary productive capacity.

Moving this water the hundreds of miles to match supply and demand uses an enormous amount of energy.

"They have to do something to get production to match demand," he said.

Significant investments are made to continue to expand the French factory to match growing demand.

For a few years the child population remained at pre-war size and existing facilities could match demand.

"But in rail, it was cutting supply down to match demand."

If service is not improved to match increased demand, the new riders providing the enhanced revenue will return to their cars or stay home.