It must also pay them more as they raise productivity.
"We ought to raise productivity now so it can be higher in the future when a smaller percentage of the population is working."
These officials said the settlement included important measures to raise productivity.
Now, the company says it has raised productivity by 50 percent.
They also encourage investments in new equipment that raise productivity.
It has also offered to increase pay in exchange for work rule changes that would raise productivity.
British Coal therefore needs to continue its efforts to raise productivity still further.
To make its financial results more attractive to potential public investors, the company has been trying to cut costs and raise productivity, they said.
The goal of cutting such taxes is to raise investment and productivity.
The Internet and the spread of personal computers are high on the list, because they raise productivity.