中国不当劳动行为立法主要应规定雇主的不当劳动行为，包括差别待遇、黄犬契约、拒绝集体谈判和控制干涉工会等内容。
Such legislation should mainly spell out unfair labor practices on the part of employers , for example , discrimination , yellow dog contracts , rejection of collective bargaining , and control of and interference in the trade unions .
黄犬契约