both labor and management; both workers and employers
Used in contexts of industrial relations, negotiations, or agreements involving both sides of the employment relationship.
Both labor and management reached an agreement.
Representatives of both labor and management held discussions.
労使 refers to labor and management as a pair or relationship, while 労使双方 explicitly emphasizes 'both sides'.
Compound of 労使 (labor and management) + 双方 (both sides).