Hierarchy of norms refer to questions that arise when wto norm is unavoidably in consistent with other norms in the national legal system . the answers can differ in different legal systems , but constitutions generally are deemed superior to treaties , and in some developed countries statutes in domestic are superior to wto agreement , also 但對于wto協議一般都否定了其優先效力;在wto協議與國內法沖突時強調國內法的優越地位;而對于被動實施?一根據dsb報告修改與wto不符的國內措施,則相對而言得到較好的膿。