Michels spontaneously used the political psychology analysis approach and the political groups analysis approach in the course of reasoning the oligarchical tendencies of modem democracy.

• 米歇尔斯则在对“寡头统治铁律”进行论证的过程中不自觉地开拓了政治研究的方法，自发运用了政治心理分析和政治团体分析方法。