Also

* The European Union began an investigation into Pokemon cards and stickers sold by Topps Co., the maker of collectible trading cards and Bazooka bubble gum, because of pricing differences within the 15-nation bloc.

* USA Interactive, the Internet conglomerate controlled by Barry Diller, said it would change its name to InterActiveCorp to reflect its focus on online commerce.

* SBC Communications Inc. refiled an application to sell long-distance calling in Michigan after withdrawing its previous bid for federal approval amid concerns about billing of rivals.

* E-Trade Group Inc. said former Freddie Mac Chief Financial Officer Vaughn Clarke resigned as a director. The Menlo Park, Calif.-based broker said it wants to fill the vacancy with an independent outside director. * AT&T; Corp. said it reached a tentative pact with its unions on a two-year extension of their national collective bargaining contract covering 22,000 employees.

* Flight attendants at Northwest Airlines Corp. voted to ditch the Teamsters union in favor of representation by the Professional Flight Attendants Assn., the two unions said.

* Lawyers for Aladdin will recommend to a judge today that the bankrupt hotel-casino be sold to a joint venture involving a Planet Hollywood co-founder and Starwood Hotels & Resorts, eliminating the need for a high-stakes auction.