The energy area is driven by demand, supply and environmental impact.

Driven by demand and economics, the industry is certainly willing to try.

On the other hand, the demand for and necessity of community mental health is driving it into the future.

The oil industry, he said, "is almost completely driven by supply and demand."

Strong demand drove copper to its highest price in more than seven years.

In the Indian economy growth is driven by domestic demand, not exports.

But it is what your demand for cheap and unregulated services has driven them to.

They said demand for a ratings system from consumers and politicians drove them to the policy announced today.

The growing demand for the Industrial Revolution would drive development as well.

Oil companies said it was driven by rising demand.