The dismissal of a second price-fixing case against world-famous hotel-casinos will guide courts grappling with questions in similar suits alleging the use of algorithmic software violates antitrust law.

Judge Karen M. Williams of the US District Court for the District of New Jersey on Sept. 30 tossed a suit accusing Atlantic City hotel-casinos of inflating room rates through the collective use of Cendyn Group’s Rainmaker software.