1.   With many firms, the firm that expands output will always be able to reduce costs and undercut its rivals.

2.   BellSouth boasts that its offer undercuts rivals whose subscribers pay more in places like Las Vegas, Boston and Detroit.

3.   But Justice Department lawyers have argued that it is relatively easy for a large airline to profit after undercutting a rival and driving it out of a market.

4.   Rental companies have been more than willing to slash prices to undercut rivals and build their market shares.

5.   Some of the new carriers substantially undercut their rivals.

6.   Such cooperation is relatively new for an industry where operators think nothing of brutally undercutting rivals to win subscribers.

7.   The auction houses would offer to reduce their slice of the sale price in order to undercut their rival and secure the big sales.

8.   The dealers worry that the Choctaw tribe, because of its tax status, will undercut rivals on prices, even though it has promised not to do so.

9.   The other is Fielmann AG, an eyeglass maker and retailer that Thomson said has undercut rivals and shaken up the market.

10.   There is little money tied up in inventory and no dealer markups, allowing it to undercut rivals on price.