Each company voluntarily curtailed its use of the substance.
Sometimes, a company sharply curtails analyst access to management if it deems that a rating on its stock is too low.
The company is curtailing development of automated cell-growing machines.
Many companies are curtailing travel for their employees.
So far, just one company, Kraft Foods, has significantly curtailed the amount of unhealthy food it markets to children under 12.
The company has curtailed investment and maintenance measures and made some efforts to increase passengers.
The industry spokesman said a Government program would make vaccines unprofitable and force the companies to curtail research for new ones.
One company had recently moved from the centre of London and had curtailed its use of libraries.
Many major silver-mining companies are losing money and curtailing production.
As their costs soared, German companies curtailed investment and cut payrolls.