Ellis v. Costco Wholesale Corp., 657 F.3d 970 (9th Cir. 2011)

In this appeal, Costco challenged the district court’s order granting class certification in an action in which Costco’s promotional practices were alleged to have discriminated against female employees. The district court’s order granting class certification preceded the United States Supreme Court’s opinion in Wal-Mart Stores v. Dukes, 131 S. Ct. 2541 (2011).…