研究与数据
以数据库为基础的原创分析：同伴小组的实际会费水平、准入门槛的历史变动、组织分类方式，以及已披露与未披露的信息。每篇文章均注明研究方法及所用数据的时间节点。
数据集与分析
Published membership thresholds, and how they have moved
Every numeric entry test in the database — age ceilings, revenue floors, net-worth and investable-asset minimums — for 69 organizations, with the changes captured.
数据集与分析
The disclosure index: what each organization publishes about itself
For 185 organizations, whether the criteria, the price, the member count, the founding year and the chapters are public — and the pattern behind who discloses what.
数据集与分析
What membership costs: every published fee in the database
A survey of disclosed dues and initiation fees across 185 organizations, with the share that publish a price at all — regenerated from the records.
程序化访问
相同记录亦可通过有边界、限速的API获取，每条响应均包含数据溯源信息，且每个组织页面均提供JSON和Markdown格式。 API文档 · llms.txt