AT&T Seeks to Discredit Expert Testimony on Prices: Court Update

AT&T Inc. is squaring off in court against U.S. antitrust enforcers who are trying to undo the company’s takeover of Time Warner Inc. Three appellate court judges in Washington are hearing arguments Dec. 6 over the prospect of undoing a lower-court ruling that approved the deal.

AT&T Seeks to Discredit Economist’s Testimony: 11:35 a.m. ET

AT&T began its arguments with an attack on the economic findings the Justice Department relied on in its case to block the Time Warner deal.

Peter Keisler, a lawyer for the company, told the panel that the model used by Professor Carl Shapiro -- an ...