Also, this theory provided a new perspective on Buddhism history studies because it discussed Buddhism in a broader framework of political and social history on the assumption of the presence of a state system build on kenmon taisei (the system by which governance was shared among "influential houses" or ruling elites), which was proposed by KURODA.
また、黒田の提唱した権門体制論の国家像を前提としながら、政治社会史全体の構図の中に仏教を取り入れることにより、仏教史に新たな視点を追加した。