1.   Powerful ratchet effects produce a situation in which a sustained rise in unemployment above NAIRU results in a rise in NAIRU itself.

2.   A sustained rise in oil prices could set back the recovery in emerging Asian economies, in particular.

3.   Nobody knows when the stock market will begin a sustained rise.

4.   The key, economists said, is whether there is a sustained rise in consumer spending, which has been depressed amid high unemployment and rising taxes.

5.   The sustained rise in the U.S. consumption of cranberries over the past generation is perhaps the most impressive marketing success story in modern history.

6.   This sustained rise has made dollar bears look foolish, but it has also priced U.S. products out of world markets.

7.   Traders said investors discounted concerns that the U.S. attacks on Iraq could lead to a sustained rise in oil prices and raise operating costs for companies.

8.   W. Van Bussman, the top economist at Chrysler Corp., said a sustained rise in interest rates and gasoline prices would hurt the auto industry.

9.   Once the upward chain reaction is set in motion, the underlying momentum of market forces will carry forward the stocks and prices can undergo a sustained rise.

10.   This sort of situation is likely to continue for quite some time but a sustained rise is most unlikely.