1.   Antitrust regulators say they also can offer cover for professionals who cooperate to fix prices or thwart competition.

2.   Any consumer benefit derived from this enhanced operating system will be undermined if it is found to improperly thwart competition in other markets.

3.   Both companies have accused each other of thwarting competition and denying customers a choice.

4.   Both federal and state authorities have been scrutinizing similar transactions to see if they violate antitrust laws by thwarting competition in specific regions.

5.   A recent investigation by a PUC administrative law judge found no evidence of malicious intent by Pacific Bell to thwart competition.

6.   Eleven characters from the cartoon, including Slag brothers and Dick Dastardly, race in custom vehicles with special gadgets to thwart the competition.

7.   Federal and state antitrust regulators questioned whether their linkup would thwart competition and result in higher consumer prices.

8.   For the past four years, the Justice Department has maintained that Microsoft thwarted competition and hurt consumers by illegally wielding monopoly power in the software industry.

9.   Long-distance company MCI is trying to break into the local phone business and says local phone companies are trying to thwart competition.

10.   Meanwhile, some lawmakers have discussed blocking the shipment of Windows XP for fear that the program may thwart competition.