The market for labor has tightened in the past year, pushing up wages.

The market for skilled factory labor is tightening.

In any event, the market would tighten.

But he said the market would eventually tighten because nearly all of the development sites would be used up.

"But it certainly looks like they are prepared to have the market tighten for them."

As the offshore market tightens, he forecasts, rig rates will rise sharply.

But as vacancies in office buildings increased, the market for laboratories - the most expensive space of all - tightened.

But unlike California, the other states say they have held on to their regulatory power, while ensuring adequate outside power sources should the market tighten.

As the market for top executives tightened in the 1990's, they began to demand favorable financing.

In general, the market has tightened for most vaccines used in developing countries.